Files starting with C

#	File Extension	Full File Name
1	File Extension C	C/C++ Source Code Format
2	File Extension C#	Microsoft Visual C#
3	File Extension C++	C++ Source Code
4	File Extension C--	Sphinx C-- Language Source Code
5	File Extension C-MAP	C-map
6	File Extension C00	WinAce Split Archive Format
7	File Extension C000	Genie Backup Manager Compressed Split Backup Format
8	File Extension C01	WinAce Split Archive Part 1 Format
9	File Extension C02	WinAce Split Archive Part 1 Format
10	File Extension C03	Split Multi-volume ACE Compressed Format Archive
11	File Extension C04	Split Multi-volume ACE Compressed Format Archive
12	File Extension C05	Split Multi-volume ACE Compressed Format Archive
13	File Extension C06	Split Multi-volume ACE Compressed Format Archive
14	File Extension C07	Split Multi-volume ACE Compressed Format Archive
15	File Extension C08	Split Multi-volume ACE Compressed Format Archive
16	File Extension C09	Split Multi-volume ACE Compressed Format Archive
17	File Extension C1	Pov-Ray For Windows 3.x Scenes Advanced Newltpot
18	File Extension C10	WinAce Split Archive Part 10
19	File Extension C11	CARE-S InfoWorks User Defined Pollutant Detail
20	File Extension C16	C16 Creatures 3/Docking Station Image
21	File Extension C18	Dassault Systemes Catia V4 Sequential
22	File Extension C1P	Capture One Preview Data Format
23	File Extension C1S	Photo Cache
24	File Extension C1W	Capture One Work Data Format
25	File Extension C2	Pov-Ray For Windows 3.x Scenes Advanced Newltpot
26	File Extension C21	CARE-S InfoWorks Defined Pollutant Detail
27	File Extension C24	Drive Image Ace
28	File Extension C2C	CopyToDVD Project
29	File Extension C2D	WinOnCD Disc Image
30	File Extension C2E	Chinese Dictionary Index
31	File Extension C2K	Microsoft Project Holidays
32	File Extension C2R	Windows Media Center Click-To-Record Format
33	File Extension C2U	Texas Instruments CBL 2 OS Format
34	File Extension C2V	WellSight Systems License Information
35	File Extension C2W	WaterCAD
36	File Extension C2X	WinOnCD
37	File Extension C3	Pov-Ray For Windows 3.1 Scenes Advanced Newltpot
38	File Extension C32	Syslinux COM32 Module
39	File Extension C39	Split Multi-volume ACE Compressed Format Archive
40	File Extension C3D	Coordinate 3D Format
41	File Extension C3D1	Chem3D Cartesian 1 Chemical Modeller
42	File Extension C3D2	Chem3D Cartesian 2 Chemical Modeller
43	File Extension C3E	CYPE Related
44	File Extension C3L	CommView License Format
45	File Extension C3P	XPanel Project Format
46	File Extension C3T	Chemical Template
47	File Extension C3XML	Chem3D XML Format
48	File Extension C3Z	OpenQwaq 3D Model Format
49	File Extension C4	JEDMICS Image Format
50	File Extension C40	Split Multi-volume ACE Compressed Format Archive
51	File Extension C41	Split Multi-volume ACE Compressed Format Archive
52	File Extension C42	Split Multi-volume ACE Compressed Format Archive
53	File Extension C43	Split Multi-volume ACE Compressed Format Archive
54	File Extension C44	Split Multi-volume ACE Compressed Format Archive
55	File Extension C45	Split Multi-volume ACE Compressed Format Archive
56	File Extension C46	Split Multi-volume ACE Compressed Format Archive
57	File Extension C47	Split Multi-volume ACE Compressed Format Archive
58	File Extension C48	Split Multi-volume ACE Compressed Format Archive
59	File Extension C49	Split Multi-volume ACE Compressed Format Archive
60	File Extension C4B	Clonk Data Format
61	File Extension C4D	Cinema 4D Model Format
62	File Extension C4DUPDATE	Cinema 4D Update
63	File Extension C4F	Clonk Game Round
64	File Extension C4G	Clonk Game System
65	File Extension C4I	Clonk Object Format
66	File Extension C4K	Clonk Key Format
67	File Extension C4L	Clonk Data Format
68	File Extension C4M	Clonk Game Data Format
69	File Extension C4P	CrossOver Software Installer Format
70	File Extension C4S	Clonk Game Scenario
71	File Extension C4U	OpenClonk Update System
72	File Extension C4V	Clonk Game Video
73	File Extension C50	Split Multi-volume ACE Compressed Format Archive
74	File Extension C51	Split Multi-volume ACE Compressed Format Archive
75	File Extension C52	Split Multi-volume ACE Compressed Format Archive
76	File Extension C53	Split Multi-volume ACE Compressed Format Archive
77	File Extension C54	Split Multi-volume ACE Compressed Format Archive
78	File Extension C55	Split Multi-volume ACE Compressed Format Archive
79	File Extension C6	Organic 2D/3D Drafting & 3D Modelling
80	File Extension C64	Commodore 64 ROM Image
81	File Extension C85	RISC OS JPEG Bitmap Image
82	File Extension CA	Initial Telnet Cache
83	File Extension CA1	Delphi Install Disk
84	File Extension CA2	Delphi Install Disk12
85	File Extension CA3	Casio WK-1800 Keyboard Audio Data Format
86	File Extension CA4	Delphi Installation
87	File Extension CA5	Delphi Installation
88	File Extension CAA	CleanApp Archive
89	File Extension CAB	Windows Cabinet Format
90	File Extension CABAL	Haskell Cabal
91	File Extension CAC	DBASE IV Executable
92	File Extension CACHE	Cache Format
93	File Extension CACHE-2	VLC Media Player Font Cache
94	File Extension CACHE-3	VLC Media Player Font Cache
95	File Extension CACHE2	Pro/ENGINEER
96	File Extension CACHEDMSG	Valve Steam Cache Format
97	File Extension CACHEDUMP	Microsoft Windows System Data Format
98	File Extension CACHED_ICON	HERE Maps For Android Icon Cache Format
99	File Extension CACTION	Automator Converter Action
100	File Extension CAD	BobCAD-CAM Format
101	File Extension CADC	Corpatla Data Container Format
102	File Extension CADOC	Clicker App Document Format
103	File Extension CADRG	Compressed ARC Raster Graphic
104	File Extension CAE	Abaqus CAE Model
105	File Extension CAF	Core Audio Format
106	File Extension CAFF	Core Audio Format
107	File Extension CAG	ClipArt Gallery Package
108	File Extension CAH	Ulead Photo Explorer Thumbnail Cache
109	File Extension CAI	SeeYou Flight Data
110	File Extension CAJ	China Academic Journals Full-text Database
111	File Extension CAKEWALKSTUDIOWARE	Cakewalk Studioware Data Format
112	File Extension CAKEWALKWINDOWLAYOUT	Cakewalk Window Layout
113	File Extension CAL	3ds Max Pose Adjustment Format
114	File Extension CALB	Coolect Album Format
115	File Extension CALCA	Calca Document Format
116	File Extension CALENDARLOCKS	Apple Calendar Format
117	File Extension CALIB	Chief Architect Library Format
118	File Extension CALIBRE	Calibre Device Data Format
119	File Extension CALIBZ	Chief Architect Symbol
120	File Extension CALIPERSKIN	Screen Calipers Skin Format
121	File Extension CALS	CALS Raster Graphic Format
122	File Extension CALX	Calendar Printing Assistant Template
123	File Extension CAM	Gerber CAM Job Format
124	File Extension CAM-FT	CircuitCAM Footpring Data Format
125	File Extension CAM-GMC	CircuitCAM Version 6.2 GMC Library Data Format
126	File Extension CAM-PKG	CircuitCAM Design Package Format
127	File Extension CAMELSOUNDS	Camel Audio Alchemy Sound Library Format
128	File Extension CAMERROR	Camtasia Studio Error Log Format
129	File Extension CAMM	Espresso Mind Map Document
130	File Extension CAMP	WCS CAMP
131	File Extension CAMPROJ	Camtasia Studio Project
132	File Extension CAMREC	Camtasia Studio Screen Recording
133	File Extension CAMTHTR	Camtasia Studio Theater
134	File Extension CAMV	Camtasia Video Format
135	File Extension CAN	Canon Navigator Fax Document
136	File Extension CANF	CanOpener
137	File Extension CANIM	Shank Game
138	File Extension CANNEDSEARCH	Apple Mac OS X Finder Predefined Search
139	File Extension CAOS	CanOpener Preference
140	File Extension CAP	Packet Capture Format
141	File Extension CAPFILE	Ruby Capistrano Instruction
142	File Extension CAPROJ	Construct Project Format
143	File Extension CAPS	CaptureSaver
144	File Extension CAPT	Linrock Capito Data Format
145	File Extension CAPX	Construct Compressed Project Format
146	File Extension CAPXML	Capella XML Document Format
147	File Extension CAR	Car Explorer Data Format
148	File Extension CARB	Apple Mac OS X Carbon Package
149	File Extension CARC	Nintendo DS Compressed Archive Format
150	File Extension CARD	Funkiball Adventure
151	File Extension CARO	Adobe Acrobat Creatorcode
152	File Extension CAS	Autodesk AutoCAD License Format
153	File Extension CASCII	CACTVS Chemical ASCII Format
154	File Extension CASE	SlipCover Case Template
155	File Extension CASTEP	CASTEP Data Format
156	File Extension CAT	Microsoft Security Catalog Format
157	File Extension CAT4D	Cinema 4D Catalog
158	File Extension CATALOG	CATIA Catalog
159	File Extension CATANALYSIS	CATIA Analysis
160	File Extension CATDRAWING	CATIA Drawing
161	File Extension CATFCT	CATIA CATfct
162	File Extension CATKNOWLEDGE	CATIA CATKnowledge
163	File Extension CATMATERIAL	CATIA CATMaterial
164	File Extension CATOM	Chief Architect Catalogue
165	File Extension CATPART	CATIA V5 Part Format
166	File Extension CATPREFERENCES	CATIA Preferences
167	File Extension CATPROCESS	CATIA Process
168	File Extension CATPRODUCT	CATIA V5 Assembly Format
169	File Extension CATRASTER	CATIA Raster
170	File Extension CATRESOURCE	CATIA Resource
171	File Extension CATSCRIPT	CATIA Script Format
172	File Extension CATSETTINGS	CATIA Settings
173	File Extension CATSHAPE	CATIA Shape
174	File Extension CATSWL	CATIA CATSwl
175	File Extension CATSYSTEM	CATIA Functional Systems
176	File Extension CATVBS	CATIA Script Format
177	File Extension CAV	Comodo Virus Definitions Format
178	File Extension CAVS	Chinese AVS Video Format
179	File Extension CAWR	Espresso Workreport Document
180	File Extension CAX	VCollab 3D Model
181	File Extension CA_	Microsoft Cabinet Archive Format
182	File Extension CB	Microsoft Clean Boot
183	File Extension CB1	CARE-S InfoWorks Biochemical Oxygen Detail
184	File Extension CB4	Actuate Analytics
185	File Extension CB7	Comic Book 7-Zip Archive
186	File Extension CBA	Comic Book ACE Archive
187	File Extension CBB	ChessBase Search Booster
188	File Extension CBC	Comic Book Collection
189	File Extension CBCP	CodeBaby Production Studio Character Package
190	File Extension CBD	Corel WordPerfect Dictionary
191	File Extension CBDS	Comic Book DS Format
192	File Extension CBF	Calendar Builder Format
193	File Extension CBG	ChessBase Game Moves Format
194	File Extension CBH	ChessBase Database Header Format
195	File Extension CBK	Backup Configuration Format
196	File Extension CBL	COBOL Source Code Format
197	File Extension CBM	Bitmap Image Format
198	File Extension CBMAP	Containment Breach Map Format
199	File Extension CBMV	Comic Book Millennium Collection
200	File Extension CBN	PaperMaster Cabinet
201	File Extension CBO	Microsoft Interactive Training
202	File Extension CBOARD	Final Cut Pro Color Board Preset Format
203	File Extension CBP	Code::Blocks Project Format
204	File Extension CBPLUGIN	Code::Blocks Plugin
205	File Extension CBPROJ	C++ Builder Project
206	File Extension CBQ	StarOS Script
207	File Extension CBR	Comic Book Archive Format Or ComicBook Reader Format
208	File Extension CBS	Comodo Backup Script
209	File Extension CBT	CDisplay TAR Comic Book Format
210	File Extension CBU	Comodo Backup Format
211	File Extension CBV	ChessBase Database Format
212	File Extension CBW	ComicRack Webcomics
213	File Extension CBX	Rational XDE
214	File Extension CBXML	CodeBox XML Library
215	File Extension CBZ	Comic Book Archive Format Or ComicBook Reader Format
216	File Extension CC	C++ Source Code Format
217	File Extension CC1	Briggs Softworks Calendar Commander
218	File Extension CC2	Calendar Commander Calendar Data Format
219	File Extension CC3	CUEcards Data Format
220	File Extension CC4	Crossword Compiler Crossword Puzzle Format
221	File Extension CCA	Multimedia Fusion Format
222	File Extension CCB	Visual Basic Animated Button Configuration
223	File Extension CCBI	CocosBuilder Data Format
224	File Extension CCBJS	CopperCube JavaScript Scene
225	File Extension CCC	Microsoft Internet Chat Conversation Log
226	File Extension CCD	CloneCD Disc Image
227	File Extension CCE	Calendar Creator 2 Event
228	File Extension CCF	CryptLoad Container Format
229	File Extension CCFG	BartPE Configuration Format
230	File Extension CCGAME	XNA Creators Club Game Package
231	File Extension CCH	Photomodeler Photochip Thumbnail Format
232	File Extension CCI	Champions Interlace Compressed Picture Image Format
233	File Extension CCIP	Curse Client Install Package
234	File Extension CCJ	Crossword Compiler Compiled Crossword Applet
235	File Extension CCK	Corel Clipart
236	File Extension CCL	CCTools Levelset
237	File Extension CCLD	Construction Clouds Data Format
238	File Extension CCM	Multimedia Fusion Custom Menu
239	File Extension CCMG	STAR-CD Solver Ready Geometry Data Format
240	File Extension CCMP	STAR-CD Results Data Format
241	File Extension CCMT	STAR-CD Transient Data Format
242	File Extension CCN	Multimedia Fusion Development Format
243	File Extension CCO	Apple Cocoa
244	File Extension CCP	CloneCD Profiles Format
245	File Extension CCP4	Collaborative Computational Project Number 4 Format Format
246	File Extension CCPROJ	Microsoft Visual Studio Cloud Service Project Format
247	File Extension CCR	ASTM Continuity Of Care Record
248	File Extension CCRF	Calcomp Raster Bitmap Image
249	File Extension CCS	TrialDirector Clip Script Format
250	File Extension CCSCC	ClearCase Source Control Info Format
251	File Extension CCT	Director Protected Cast Resource
252	File Extension CCU	CryptLoad Update Data Format
253	File Extension CCW	Crossword Compiler Saved Puzzle
254	File Extension CCWSLN	Connected Components Workbench
255	File Extension CCX	Click & Create Extension
256	File Extension CCXML	Call Control EXtensible Markup Language
257	File Extension CD	Visual Studio Class Diagram
258	File Extension CD2	DATAIR Cafeteria Document System Custom Text
259	File Extension CD5	Chasys Draw Image
260	File Extension CDA	CD Audio Track
261	File Extension CDADJ	Cyberlink PowerDirector Data Format
262	File Extension CDATA	Command & Conquer 3 Audio
263	File Extension CDB	Symbian Phonebook Database
264	File Extension CDBCMSG	CIM Database CMSG Data Format
265	File Extension CDC	AutoCAD DesignCenter Preview Cache Format
266	File Extension CDD	ConceptDraw PRO Document
267	File Extension CDDA	CD Digital Audio Format
268	File Extension CDDX	Circuit Diagram Document
269	File Extension CDDZ	ConceptDraw Document Format
270	File Extension CDE	CADKEY Dynamic Extension
271	File Extension CDEM	CompeGPS Land Landscape
272	File Extension CDF	Computable Document Format Format
273	File Extension CDF-MS	ClickOnce Compiled Manifest Format
274	File Extension CDFX	Cindex
275	File Extension CDG	DART Karaoke Studio Lyrics Format
276	File Extension CDI	DiscJuggler Disc Image
277	File Extension CDJ	DiscJuggler CD-ROM Data
278	File Extension CDK	Calamus SL Document
279	File Extension CDL	CADKEY Wireframe Design Format
280	File Extension CDLX	Audition CD Layout Format
281	File Extension CDM	NTI CD-Maker Image
282	File Extension CDMEDIA	Boxer For Mac Cd-rom
283	File Extension CDML	Creately Document Markup Language Document Format
284	File Extension CDMM	ConceptDraw MINDMAP Document
285	File Extension CDMP	WCS Device Model Profile
286	File Extension CDMT	ConceptDraw MINDMAP Template
287	File Extension CDMTZ	Compressed ConceptDraw MINDMAP Template
288	File Extension CDMZ	Compressed ConceptDraw MINDMAP Document
289	File Extension CDO	Crescendo Music Score Format
290	File Extension CDOC	DigiDoc Client Container
291	File Extension CDP	Trainz Simulator Content Dispatcher Pack
292	File Extension CDP2	Trainz Classics Content Dispatcher Pack 2
293	File Extension CDPROJ	CppDepend Project Format
294	File Extension CDPX	ConceptDraw PROJECT XML Format
295	File Extension CDPZ	ConceptDraw PROJECT Document
296	File Extension CDR	CorelDRAW Image Format
297	File Extension CDR3	CorelDRAW 3 For Mac Vector Or Bitmap Image
298	File Extension CDR4	CorelDRAW 4 For Mac Vector Or Bitmap Image
299	File Extension CDR5	CorelDRAW 5 For Mac Vector Or Bitmap Image
300	File Extension CDR6	CorelDRAW 6 For Mac Vector Or Bitmap Image
301	File Extension CDRW	CorelDRAW For Mac
302	File Extension CDRX	Bosch Crash Data Retrieval Data Format
303	File Extension CDRZIP	DICOM Compressed Image
304	File Extension CDS	ChemDraw Stationery Document
305	File Extension CDSG	DrawMusic Chord Song
306	File Extension CDSX	ConceptDraw PRO XML Slide Show Format
307	File Extension CDT	CorelDRAW Image Template
308	File Extension CDT6	CorelDRAW 6 For Mac Template
309	File Extension CDTX	ConceptDraw PRO XML Template Format
310	File Extension CDT_	CorelDRAW For Mac Template
311	File Extension CDU	CDU Paint Image Format
312	File Extension CDV	CatDV Catalog
313	File Extension CDW	KOMPAS Document
314	File Extension CDWS	CorelDraw Workspace Format
315	File Extension CDX	CorelDRAW Compressed Drawing Format
316	File Extension CDXL	Amiga Movie Format Format
317	File Extension CDXML	ChemDraw XML Format
318	File Extension CDY	Cinderella Construction Data Format
319	File Extension CDZ	ROM With A View Project Format
320	File Extension CE	ComputerEyes Image
321	File Extension CE0	Winewar Worm
322	File Extension CE1	Computer Eyes Raw Image Format
323	File Extension CE2	Computer Eyes Raw Image Format
324	File Extension CEA	DAZ 3D Carrara Pro Export
325	File Extension CEB	Apabi EBook Format
326	File Extension CEBX	Apabi E-Book Data Format
327	File Extension CED	JVC Camera Video Data Format
328	File Extension CEDATA	Pogoplug
329	File Extension CEDF	TC Configuration Editor Data Format
330	File Extension CEDPRJ	Ashampoo CoverEditor Project
331	File Extension CEF	CenturionMail Encrypted Package
332	File Extension CEI	CRiSP Harvest
333	File Extension CEID	Seagate Dockstar Configuration Format
334	File Extension CEIMG	CeRegEditor Registry Image
335	File Extension CEKEY	McAfee VirusScan Configuration Format
336	File Extension CEL	Affymetrix Probe Results Format
337	File Extension CELL	CASTEP Supercell Material Data
338	File Extension CELTX	Celtx Project Format
339	File Extension CELX	Celestia Script
340	File Extension CEM	Empire Earth Game Format
341	File Extension CENON	Cenon Project Format
342	File Extension CENON~	Cenon Project Backup Format
343	File Extension CEO	Winewar Worm
344	File Extension CEP	CostOS Estimating Project Database Format
345	File Extension CER	Internet Security Certificate
346	File Extension CERBER	Cerber Ransomware Affected Data Format
347	File Extension CERT	Netscape Certificate Index
348	File Extension CERTAUTHORITYCONFIG	Apple Mac OS X Certificate Assistant Configuration
349	File Extension CERTSIGNINGREQUEST	Apple Mac OS X Certificate Assistant
350	File Extension CESF	Ultra TC Configuration Editor Script Format
351	File Extension CET	Hitachi Cobol
352	File Extension CETRAINER	DBVM
353	File Extension CEX	SolidWorks Enterprise PDM Vault Export Format
354	File Extension CEZEOKEY	CEZEO Key Data Format
355	File Extension CF	Sendmail Configuration Format
356	File Extension CF1	Common Format Format 1 Format
357	File Extension CF2	Common Format Format Format
358	File Extension CF5	DocuWare
359	File Extension CF7	Toshiba ConfigFree Profile Handling Module
360	File Extension CF8	Cashflow Manager Data Format
361	File Extension CF9	Cashflow Manager Accounting Data Format
362	File Extension CFA	Adobe Conformed Audio Format
363	File Extension CFB	Disk Drill Recovered
364	File Extension CFC	ColdFusion Component Format
365	File Extension CFD	CryptoForge Document
366	File Extension CFDI	Comprobante Fiscal Digital Por Internet
367	File Extension CFE	CryptoForge Encrypted
368	File Extension CFF	ColorImpact Color Formula Format
369	File Extension CFF2	Kodak Pandora Exported
370	File Extension CFG	Configuration Format
371	File Extension CFGE	Jewel Quest Configuration Format
372	File Extension CFI	CleverForm Script
373	File Extension CFK	Microsoft Developer Studio Diagram
374	File Extension CFL	IMVU Product Format
375	File Extension CFM	ColdFusion Markup Format
376	File Extension CFML	ColdFusion Markup Language Format
377	File Extension CFN	Calamus Font Data
378	File Extension CFO	Turbo C Utilities C Form Object
379	File Extension CFOS6LINK	CFos IPv6 Link Registration Data Format
380	File Extension CFOSSPEED	CFosSpeed Registration Key Format
381	File Extension CFP	Bitmap Native Format For CoverFactory
382	File Extension CFPRESET	SA Color Finesse Plugin For Adobe After Effects
383	File Extension CFR	Cross Fire Replay Format
384	File Extension CFREPLAY	Crossfire Europe Replay
385	File Extension CFS	INMOS Configuration Format
386	File Extension CFT	CFast Graphics
387	File Extension CFW	ChemFinder Form
388	File Extension CFX	Magix Movie Edit Pro
389	File Extension CFXR	Cocoa Sfxr Format
390	File Extension CFXXE	Possibly Malware
391	File Extension CFZ	Compressed Archive
392	File Extension CG	Cg Program
393	File Extension CG3	Cabri 3D Document
394	File Extension CG4	CALS Group IV Bitmap Graphics
395	File Extension CGA	Ventura Publisher CGA Display Font
396	File Extension CGD	CricketGraph Data
397	File Extension CGDB	Microsoft Clip Art Package
398	File Extension CGF	Crytek Geometry Format Format
399	File Extension CGFX	CgFX Shader Format
400	File Extension CGI	Common Gateway Interface Script
401	File Extension CGINC	Unity Custom Shader Include
402	File Extension CGK	BlueSoleil
403	File Extension CGM	Computer Graphics Metafile
404	File Extension CGMAP	CityGuide Region Map
405	File Extension CGNS	CFD General Notation System Data Format
406	File Extension CGO	Railroad Tycoon 3 Car Properties
407	File Extension CGP	PixelCryptor Encrypted Format
408	File Extension CGR	CATIA Graphical Representation Format
409	File Extension CGRP	Pro Tools Clip Group Format
410	File Extension CGS	CGS General Motors CAD Drawing Format
411	File Extension CGT	Gold Parsing System Compiled Grammar Table
412	File Extension CGV	OSLay Parameters Data Format
413	File Extension CGVP	NVidia Cg Programming Language XML
414	File Extension CGX	ARM RL-TCPnet HTTP Web Server XML Web Page Update Script
415	File Extension CGZ	Linux Drivers Archive
416	File Extension CH	OS/2 Configuration
417	File Extension CH1	IBM Freelance Graphics Chart
418	File Extension CH10	Irig 106 Original Recording
419	File Extension CH3	Harvard Graphics DOS Chart Format
420	File Extension CH4	WSxM
421	File Extension CH5	VisIt
422	File Extension CH6	ZX-Paintbrush Character Format
423	File Extension CH8	ZX-Paintbrush Character Format
424	File Extension CHA	IRC Chat Configuration Format
425	File Extension CHAM	Compiled HAM Format
426	File Extension CHANGEDB	SQLite Data Format
427	File Extension CHANGEDB-JOURNAL	SQLite Data Format
428	File Extension CHAP	MP4 Movie Chapter
429	File Extension CHAPTERS	ChapterGrabber Data Format
430	File Extension CHAR	Nintendo DS Character Tile Data Format
431	File Extension CHARMM	CHARMm Chemical Modeller Input
432	File Extension CHARSCIRPT	Divinity: Original Sin Game Data Format
433	File Extension CHARSET	Character Set
434	File Extension CHART	Feedback Chart Format
435	File Extension CHAT	IRC Chat Configuration Format
436	File Extension CHATLOG	Adium Chat Log
437	File Extension CHC	HCFR Colorimeter Data Format
438	File Extension CHD	MAME Hard Disk Image
439	File Extension CHE	CHwinEHE Project
440	File Extension CHECK	CASTEP Check Binary Data Format
441	File Extension CHEF	Chef Source Code Format
442	File Extension CHEM	WRF/CHEM Chemical Data Format
443	File Extension CHESSTITANSSAVE-MS	Microsoft Chess Titans Saved Game
444	File Extension CHF	PcAnywhere Remote Control
445	File Extension CHG	Quicken Online Data Format
446	File Extension CHH	C++ Header
447	File Extension CHI	Microsoft Help Index
448	File Extension CHJ	IBM SPSS Interview Cache
449	File Extension CHK	ScanDisk Format Fragment
450	File Extension CHKN	IMVU Create Mode Temporary
451	File Extension CHKSPLIT	Incredible Bee Archiver Checksum
452	File Extension CHL	Microsoft Internet Explorer Channel Information Format
453	File Extension CHLS	Charles Session Format
454	File Extension CHM	Compiled HTML Help Format
455	File Extension CHML	Chameleon Encrypted Database Format
456	File Extension CHMPRJ	Abee CHM Maker HTML Archive Format
457	File Extension CHM_1029	Microsoft Installation Data Format
458	File Extension CHN	Ethnograph Data
459	File Extension CHO	Animation:Master Choreography
460	File Extension CHORD	Song Chords Format
461	File Extension CHP	Ventura Publisher Chapter Document
462	File Extension CHQ	Microsoft Help Combined Full-text Search
463	File Extension CHR	3ds Max Characters Format
464	File Extension CHR0	Nintendo Wii Model Animation Format
465	File Extension CHRPARAMS	CryENGINE Character Parameters Format
466	File Extension CHS	Windows Chinese Noise-Word List Format
467	File Extension CHT	SNES Cheat Format
468	File Extension CHTML	Compact HTML Document
469	File Extension CHU	Infinity Engine Game Data Format
470	File Extension CHUNK001	File Splitter Split Archive Part 1
471	File Extension CHUZZLEDELUXESAVEDGAME	Chuzzle Deluxe Saved Game Format
472	File Extension CHV	ChView Interactive Star Map Format
473	File Extension CHW	Compiled Help Index Format
474	File Extension CHX	AutoCAD Standards Check Format
475	File Extension CHY	FileMaker Pro Data Format
476	File Extension CI	CitectSCADA Format
477	File Extension CIA	Sheffield Dictionary Data Format
478	File Extension CIB	Compressed RAW Image Format
479	File Extension CIC	Hitachi Ladder Editor Circuit Comment Format
480	File Extension CID	CoDiagnostiX User Defined Implant
481	File Extension CIDA	Xplorer² Scrap Document Format
482	File Extension CIDB	Apple ITunes CD Information Format
483	File Extension CIE	CIE Format Format Format - Color Information Format
484	File Extension CIF	Easy CD Creator Disk Image
485	File Extension CIH	Chernobyl Virus Data Format
486	File Extension CII	Caesar II
487	File Extension CIK	Corel Graphics 10 Custom Dual Tone
488	File Extension CIL	Clip Gallery Packaged Format
489	File Extension CILX	Volume Activation Management Tool Data Format
490	File Extension CIM	CimPack Design Drawing
491	File Extension CIMG	CImg Image Format
492	File Extension CIN	Kodak Cineon Bitmap Format
493	File Extension CIN96LM	Microsoft Cinemania
494	File Extension CIN96UPD	Microsoft Cinemania Format
495	File Extension CINE	Phantom Digital Video Format
496	File Extension CINEMA4D	Cinema 4D For Amiga
497	File Extension CIO	SWAT Master Watershed
498	File Extension CIP	CryptoBuddy Encrypted Format
499	File Extension CIPO	Cartesian Products Compressed Internet Document
500	File Extension CIR	Supermax ECAD Command Save
501	File Extension CIRC	Logisim Circuit
502	File Extension CIRCUIT	KTechlab Circuit Design Format
503	File Extension CIS	CheckInbox
504	File Extension CIS2	ProSteel Document Format
505	File Extension CISO	Wii Compressed Game Image
506	File Extension CIT	Intergraph Bitmap Image Format
507	File Extension CITRIODOWNLOAD	Citrio Incomplete Download Format
508	File Extension CITRIXONLINE	GoToMeeting Data Format
509	File Extension CITRIXONLINE312	GoToMeeting Data Format
510	File Extension CITRIXONLINE393	GoToMeeting Data Format
511	File Extension CIV	Empire Earth Custom Civilization Information
512	File Extension CIV4REPLAY	Sid Meiers Civilization 4 Replay Format
513	File Extension CIV4SAVEDGAME	Civilization IV Save Game Format
514	File Extension CIV4WORLDBUILDERSAVE	Civilization IV World Builder Save Format
515	File Extension CIV5MAP	Civilization 5 Map
516	File Extension CIV5MOD	Civilization 5 Mod Format
517	File Extension CIV5PROJ	Civilization 5 Game Data Format
518	File Extension CIV5SAVE	Civilization 5 Saved Gae
519	File Extension CIV5SLN	Civilization 5 Game Data Format
520	File Extension CIVBEYONDSWORDSAVE	Civilization IV: Beyond The Sword Save Game Format
521	File Extension CIVBEYONDSWORDWBSAVE	Civilization IV Game Data Format
522	File Extension CIVWARLORDSREPLAY	Sid Meiers Civilization 4 Replay Format
523	File Extension CIW	Web Of Science Export
524	File Extension CIX	Rational XDE
525	File Extension CJSTYLES	Skin Builder Project
526	File Extension CK	ChucK Source Code Format
527	File Extension CK1	Commander Keen 1 Game Data
528	File Extension CK2	Commander Keen 2 Game Data
529	File Extension CK3	Commander Keen 3 Game Data
530	File Extension CK4	Commander Keen 4 Game Data
531	File Extension CK5	Commander Keen 5 Game Data
532	File Extension CK6	Commander Keen 6 Game Data
533	File Extension CK9	DVN Cookn Cookbook Backup Format
534	File Extension CKA	Comfort Keys Database
535	File Extension CKB	Cricket Audio Bank Format
536	File Extension CKBX	Cricket Audio XML Bank Description Format
537	File Extension CKD	CADKEY Design Format
538	File Extension CKF	Casio Keyboard Format
539	File Extension CKM	Creation Kit Macro Format
540	File Extension CKP	Ingres Database Checkpoint Data
541	File Extension CKS	Microsoft Windows CE Image Info
542	File Extension CKT	CircuitMaker Format
543	File Extension CKZ	QuickSFV Format Verification Database
544	File Extension CL	Cursor Library
545	File Extension CL2	HY-TEK Meet Results Format
546	File Extension CL2ARC	Comic Life 2 Document Archive
547	File Extension CL2DOC	Comic Life 2 Document
548	File Extension CL2LYT	Comic Life 2 Layout Format
549	File Extension CL2TPL	Comic Life 2 Template
550	File Extension CL3	Easy CD Creator CD Layout
551	File Extension CL4	Easy CD Creator 4 Project Format
552	File Extension CL5	Easy CD Creator 5 Saved Project
553	File Extension CL7	Free Clipboard Viewer Data Format
554	File Extension CLA	Clarion For DOS Source Code
555	File Extension CLAF	Claris Font
556	File Extension CLAM	Adobe InDesign Dictionary
557	File Extension CLARIFY	Clarify Document
558	File Extension CLAS	Java Class
559	File Extension CLASS	Java Class Format
560	File Extension CLASSDIAGRAM	Microsoft Visual Studio Class Diagram
561	File Extension CLASSLIST	SMART Notebook Class List Format
562	File Extension CLASSPATH	Eclipse IDE JAVA Project Related
563	File Extension CLB	Super NoteTab ClipBook Template Format
564	File Extension CLBX	MP3 Automagic CD Cover Creator Label
565	File Extension CLC	Microsoft Schedule+ 7 Habits Mission Statement
566	File Extension CLD	Canon CD Label Template
567	File Extension CLDCVT	CD-LabelPrint Converted Data
568	File Extension CLDLYR	TerraGen Cloud Layer
569	File Extension CLE	Icon Lock-iT Locked Format Indicator
570	File Extension CLEAN	Instagram For Android Cache Format
571	File Extension CLEO	CLEO Grand Theft Auto Mod Format
572	File Extension CLF	ListPro
573	File Extension CLG	QIP List Of Ignored Contacts Format
574	File Extension CLGX	Collage Maker Collage
575	File Extension CLI	Client Management System Customer
576	File Extension CLIB	CATS Library Data Format
577	File Extension CLIP	Grand Theft Auto V Clip Format
578	File Extension CLIPPING	Apple Mac OS X Finder
579	File Extension CLIPS	Coda Clips Format
580	File Extension CLIX	CLIX Command Format
581	File Extension CLJ	Clojure Source Code
582	File Extension CLJS	ClojureScript Script Format
583	File Extension CLJX	Visual Studio Code Data Format
584	File Extension CLK	Corel R.A.V.E Project Format
585	File Extension CLKB	Clicker Book Data Format
586	File Extension CLKBD	Clicker Board Set Format
587	File Extension CLKC	Clicker Connect Set Format
588	File Extension CLKD	Clicker Document Format
589	File Extension CLKK	Clicker Keyboard
590	File Extension CLKP	Clicker Palette Format
591	File Extension CLKT	Clicker Template
592	File Extension CLKW	Clicker Word Bank
593	File Extension CLKX	Clicker Grid Set
594	File Extension CLL	Crick Software Clicker
595	File Extension CLLE_PROPERTIES	Eclipse Settings Format
596	File Extension CLM	MagicJack Call Log Format
597	File Extension CLM2	Clipboard Master Database Format
598	File Extension CLMLIC	Clipboard Master License Format
599	File Extension CLMS	Clipboard Master Settings Format
600	File Extension CLN	Microsoft Windows 3.x Configuration Backup
601	File Extension CLO	Cloe Ray-Tracer Image
602	File Extension CLOE	Cloe Ray-Tracer Image
603	File Extension CLOG	SpreadMaster Client Log Format
604	File Extension CLOJURE	Clojure Source Code Format
605	File Extension CLONECD	CloneCD Registration Data Format
606	File Extension CLONEDVD	CloneDVD Registration Data Format
607	File Extension CLONEDVDMOBILE	CloneDVD Mobile Registration Key Format
608	File Extension CLOUD	GOM Atos Scanner
609	File Extension CLOUDPHOTODB	Apple Photos Database Format
610	File Extension CLOUDPHOTODB-SHM	Apple Photos Database Related Data Format
611	File Extension CLOUDPHOTODB-WAL	Apple Photos Database Format
612	File Extension CLP	CrazyTalk Clip Format
613	File Extension CLPI	Blu-ray Clip Information Format
614	File Extension CLPPRJ	CodeLobster PHP Edition Project
615	File Extension CLR	Flash Color Set
616	File Extension CLR0	Nintendo Wii Color Swapping Animation
617	File Extension CLS	LaTeX Document Class Format
618	File Extension CLSID	CLSID Identifier Format
619	File Extension CLSJ	Cyberlink PowerDVD Data Format
620	File Extension CLT	Clarity Legal Transcript Format
621	File Extension CLU	Broken Sword 2 Dialogue
622	File Extension CLV	QIP Visible List
623	File Extension CLW	Visual C++ ClassWizard Format
624	File Extension CLX	Standard Dictionary Format
625	File Extension CLY	CorelDRAW Custom Layout
626	File Extension CLZ	Tomb Raider: The Angel Of Darkness Game
627	File Extension CM	CLEO Custom Mission
628	File Extension CM0013	Device Identify Data Format
629	File Extension CM10	CaseMap Case Format
630	File Extension CM2	Poser Camera Set Format
631	File Extension CM3	CaseMap Data
632	File Extension CM4	ClipMate Data
633	File Extension CM5	LexisNexis Case Analysis
634	File Extension CM8	CaseMap Case
635	File Extension CMA	TM1 Exported Cube Format
636	File Extension CMAKE	CMake Module
637	File Extension CMAP	CmapTools Concept Map Format
638	File Extension CMATE	ControllerMate Configuration Format
639	File Extension CMB	Xtree For Windows Button Bar
640	File Extension CMBL	Logger Pro Data Format
641	File Extension CMC	Comic Collector Collection Data
642	File Extension CMD	Windows Command Format
643	File Extension CMDB	ANSYS CFX Mesh Database
644	File Extension CMDF	CrystalMaker Data
645	File Extension CMDT	Claris Dictionary
646	File Extension CME	Crazy Machines Level Format
647	File Extension CMF	Creative Labs FM-synthesis Music Format
648	File Extension CMG	ChessMaster Saved Game
649	File Extension CMH	PLINK Test Report Format
650	File Extension CMI	The Dig Bundle
651	File Extension CML	Chemical Markup Language Format
652	File Extension CMM	Corel Multimedia Manager Album
653	File Extension CMMCD	Camtasia Studio MenuMaker Project
654	File Extension CMMP	Camtasia MenuMaker Project
655	File Extension CMMTHEME	CleanMyMac Theme Format
656	File Extension CMMTPL	Camtasia MenuMaker Template
657	File Extension CMN	Systems Management Server (SMS) Update
658	File Extension CMO	Spanish Whiz Sound
659	File Extension CMOD	Celestia Model
660	File Extension CMP	PKWare Compression Library Archive Format
661	File Extension CMP7	Araxis Merge Comparison Data Format
662	File Extension CMPROJ	Camtasia Project Format
663	File Extension CMP_XML	Solid Edge XML Design
664	File Extension CMR	Coach Saved Results
665	File Extension CMRBK	CaseMap ReportBook Definition
666	File Extension CMREC	Camtasia Recording
667	File Extension CMS	CaseMap Case Script Format
668	File Extension CMT	Chinon ES-1000 Digital Camera Image Format
669	File Extension CMTX	E-Sword Commentary
670	File Extension CMU	CMU Window Manager Bitmap Image
671	File Extension CMV	CorelDRAW CorelMove Animation
672	File Extension CMW	Microsoft Office Custom Maintenance Wizard Data
673	File Extension CMX	Corel Metafile Exchange Image Format
674	File Extension CMY	CorelDraw Custom
675	File Extension CMYK	Raw Cyan, Magenta, Yellow And Black Bytes Bitmap Image Format
676	File Extension CMZ	Compressed Poser Camera Set Format
677	File Extension CN	CNwin/MLwin Account
678	File Extension CN1	CNR Modem Initialization Data Format
679	File Extension CN3	CN3D
680	File Extension CNA	Catena Project Format
681	File Extension CNB	Pegasus Mail Noticeboard Mail Stored Message
682	File Extension CNC	PartMaster CNC Format
683	File Extension CNC3CAMPAIGN	Command And Conquer 3 Campaign Save Game
684	File Extension CND	Melco Condensed Embroidery Format
685	File Extension CNDX	Avery DesignPro For Mac Label Format
686	File Extension CNF	MySQL Configuration Format
687	File Extension CNG	CryptoNG Encrypted Format
688	File Extension CNI	CWBench
689	File Extension CNJ	Acharya Conjunct Data Format
690	File Extension CNK	Microsoft Dynamics GP Chunk
691	File Extension CNM	NoteMap Outline Format
692	File Extension CNN	ADO-network Connection Configuration
693	File Extension CNO	INet-Server Error Description
694	File Extension CNQ	WebShop Platinum Project
695	File Extension CNR	Pegasus Mail Mail Message Stored In Systemwide Folder
696	File Extension CNS	Windows 2000 Client Connection Manager Export Format
697	File Extension CNT	Help Contents Format
698	File Extension CNTK	Microsoft Outlook Express Contact
699	File Extension CNTL	GoCart Control
700	File Extension CNV	Canvas 6-8 Drawing Format
701	File Extension CNX	Pegasus Mail
702	File Extension CO	Cobalt 3D
703	File Extension COA	Caligari TrueSpace 3D Object
704	File Extension COB	COBOL Source Code Format
705	File Extension COBOL	Micro-Focus Cobol Data Format
706	File Extension COC	Bibexcel
707	File Extension COD	Compiled Source Code
708	File Extension CODAPLUGIN	Coda Plug-in
709	File Extension CODASITE	Coda Site Format
710	File Extension COE	Xilinx BRAM Initialization
711	File Extension COF	AutoDesk Data Format
712	File Extension COFFEE	CoffeeScript JavaScript Format
713	File Extension COG	SolidWorks Compiled Log Format
714	File Extension COK	INet-Server Error Report
715	File Extension COL	Capture One Session Format
716	File Extension COLLAB	Collaborate Collaboration Data Format
717	File Extension COLLECTION	Adobe Bridge Collection Format
718	File Extension COLLISIONMESH	Battlefield Collision Mesh
719	File Extension COLLOQUYTRANSCRIPT	Colloquy Chat Transcript
720	File Extension COLOR	Amaya Config
721	File Extension COLORPICKER	Color Picker Plugin
722	File Extension COLORS	SAM Makelogo Color
723	File Extension COLOURSCHEME	J&ASoft Speedy Browser Color Scheme Settings
724	File Extension COLR	Kaleidoscope Scheme
725	File Extension COLZ	Adobe Collage Format
726	File Extension COM	DOS Command Format
727	File Extension COMFYCAKESSAVE-MS	Comfy Cakes Saved Game
728	File Extension COMICDOC	Comic Life Document
729	File Extension COMICLIFE	Comic Life Document Format
730	File Extension COMICSTL	Comic Life Stylesheet Format
731	File Extension COMICTPL	Comic Life Template Format
732	File Extension COMMAND	Terminal Command Format
733	File Extension COMMANDERDOC	Apple Qmaster
734	File Extension COMMON	Unix Script
735	File Extension COMP	CodeWarrior Compiler
736	File Extension COMPARISON	Merge Comparison Report
737	File Extension COMPARISON7	Araxis Merge Comparison Data Format
738	File Extension COMPILED	Plants Vs. Zombies Compiled Game Resource Format
739	File Extension COMPLETE	SendSafe Deciphered E-message
740	File Extension COMPO	DAZ 3D Carrara Pro 7 Or 8 Temporary
741	File Extension COMPONENT	Mac OS X System Component
742	File Extension COMPONENTDIAGRAM	Microsoft Visual Studio Component Diagram
743	File Extension COMPONENTS	Mac OS X System
744	File Extension COMPOSITEFONT	Windows Composite Font Format
745	File Extension COMPOSITIONMODEL	Invantive Composition Data Model
746	File Extension COMPOSITIONTEMPLATE	Invantive Composition Template Format
747	File Extension COMPRESS	Microsoft Compress
748	File Extension COMPRESSED	WordCompress Compacted Web Format
749	File Extension COM_	Emu8086 Assembly Source Code Format
750	File Extension CON	Corel WordPerfect Concordance Format
751	File Extension CONF	Configuration Information Format
752	File Extension CONF-AUTO	WOW! Configuration Data Format
753	File Extension CONFIG	Configuration Format
754	File Extension CONFIGPROFILE	Apple Configuration Profile
755	File Extension CONFIGSETTINGS	Microsoft SQL Server Analysis Services Settings Format
756	File Extension CONFIGURE	Bash
757	File Extension CONFLUENCE	Eclipse Mylyn WikiText Confluence
758	File Extension CONFORM	Conformalizer Change List Format
759	File Extension CONSIS	Sciral Consistency Data Format
760	File Extension CONSOLE	Widows NT Console
761	File Extension CONT	Panasonic Camcorder Extra
762	File Extension CONTACT	Windows Contact Format
763	File Extension CONTACTS	Contact Format
764	File Extension CONTAINER	Eclipse Project Settings Format
765	File Extension CONTENT	Rust Game Data Format
766	File Extension CONTENTPROJ	XNA Game Studio Game Content Project
767	File Extension CONTENTS	MAC OS X
768	File Extension CONTENTSOFCLIPBOARD	WinXP Powertoy
769	File Extension CONTOUR	Contour Screenplay Format
770	File Extension CONTROLS	OpenBVE Keyboard Shortcuts Format
771	File Extension CONVERTERX	SiMX TextConverter Project
772	File Extension COO	AutoCAD Bounding Coordinates Cookie
773	File Extension COOK	Netscape For Mac Cookie
774	File Extension COOKIEDB	Unknown Format Extension Format
775	File Extension COOL	QB - Text Analyzer Vocabulary List
776	File Extension COORDS	Ribbons Coords
777	File Extension COP	Sam Coupé Sound
778	File Extension COPRESET	Capture One Preset Format
779	File Extension COPY	Sony Ericsson Protected Content Format
780	File Extension COR	CorelDRAW Drawing
781	File Extension CORD	Microsoft Visual Studio Script Format
782	File Extension COS	Capture One Settings Format
783	File Extension COS2	Pinnacle Studio Cache Format
784	File Extension COSTYLE	Capture One Style Format
785	File Extension COUNTER	Netobjects Fusion Components Bbscomp Message
786	File Extension COUNTRY_HISTORY	HERE Maps For Android Data Format
787	File Extension COV	Fax Cover Page Format
788	File Extension COVERAGE	Microsoft Visual Studio Code Coverage
789	File Extension COVERAGEXML	Microsoft Visual Studio Code Coverage
790	File Extension COW	Thief Game
791	File Extension COX	Click & Create Extension
792	File Extension COZ	EFILive Calibration Data Format
793	File Extension CP	Xcode C++ Source Format
794	File Extension CP1	CARE-S InfoWorks Phosphorus Detail
795	File Extension CP2	ChessBase Theme Classification
796	File Extension CP3	Grand Prix 3 Cockpit Shape Format
797	File Extension CP8	CP8 256 Gray Scale Image
798	File Extension CP9	ChoicePoint Encrypted Format
799	File Extension CP?	LoseThos C+ Source
800	File Extension CPA	Adobe Premiere Conformed Audio Format
801	File Extension CPAA	Adobe Captivate Shared Action Data Format
802	File Extension CPB	Comicino Studio Project Format
803	File Extension CPBITMAP	IOS Wallpaper Image
804	File Extension CPC	CPC Compressed Image Format
805	File Extension CPCT	Compact Pro Archive
806	File Extension CPD	CorelDRAW Corel PrintOffice Drawing Format
807	File Extension CPDT	Adobe Captivate Design Template
808	File Extension CPE	Fax Cover Page Format
809	File Extension CPF	Cognos Project Format
810	File Extension CPFF	Cam2Com Capture Properties Format
811	File Extension CPG	Manga Studio Page Format
812	File Extension CPGZ	Compressed CPIO Archive
813	File Extension CPH	Corel Print House Format
814	File Extension CPHD	CloudChan Pre-processed Hypertext Document Format
815	File Extension CPI	AVCHD Video Clip Information Format
816	File Extension CPIO	Unix CPIO Archive
817	File Extension CPJ	NVidia CUDA Project Format
818	File Extension CPK	DTM Test Log Format
819	File Extension CPL	Windows Control Panel Item
820	File Extension CPLIST	GNU Makefile Format
821	File Extension CPLN	KalOnline Extended Module Format
822	File Extension CPMZ	Miradi/ConPro Project Format
823	File Extension CPN	Age Of Mythology Campaign Format
824	File Extension CPO	Corel Print House Data
825	File Extension CPP	C++ Source Code Format
826	File Extension CPQ	Compaq OEM Disc Configuration Format
827	File Extension CPR	Cubase Project
828	File Extension CPRR	Adobe Captivate XML Script
829	File Extension CPS	Corel Photo House Format
830	File Extension CPT	Corel Photo-Paint Document
831	File Extension CPT2	M-Tron Pro Library
832	File Extension CPTL	Adobe Captivate Project Template Format
833	File Extension CPTM	Adobe Captivate Theme
834	File Extension CPTX	Adobe Captivate Project Format
835	File Extension CPU	SiSoftware Sandra
836	File Extension CPUPROFILE	Google Chrome DevTools Data Format
837	File Extension CPVC	Adobe Captivate Video Composition Format
838	File Extension CPW	Online Cost Planning Service Cost Planning Work Data Format
839	File Extension CPX	Oracle ADF Binding Context Format
840	File Extension CPY	3ds Max Copy Track Format
841	File Extension CPZ	LoseThos C+ Source
842	File Extension CQ	SYSGEN Replacement Data Format
843	File Extension CQE	Cumulus 6 Data Format
844	File Extension CQF	PcAnywhere Command Queue Format
845	File Extension CQL	XDCC Catcher Queue List
846	File Extension CQS	ConQuest Search Data Format
847	File Extension CQT	MAIL.DAT Container Quantity Data
848	File Extension CR	CRiSP Source Code
849	File Extension CR1	LoggerNet CRBasic Source
850	File Extension CR2	Canon Raw Image Format
851	File Extension CR5	Survey Pro Coordinate
852	File Extension CRAFT	KSP Spacecraft Format
853	File Extension CRASH	Mac OS X Crash Log Format
854	File Extension CRASHED	AbiWord Crash-Saved Document
855	File Extension CRATE	Serato DJ Crate Plylist Format
856	File Extension CRB	BigOven Recipe Database
857	File Extension CRC	Total Commander Checksum Format
858	File Extension CRD	Windows CardSpace Format
859	File Extension CRDOWNLOAD	Chrome Partially Downloaded Format
860	File Extension CRDS	Windows CardSpace Backup Format
861	File Extension CRE	Infinity Engine Creature Data Format
862	File Extension CREC	Microsoft Lync 2010 Recording
863	File Extension CREOLE	Creole Source
864	File Extension CREV	Adobe Captivate Commentable SWF Format
865	File Extension CRF	Enhanced Dark Engine Game Archive Format
866	File Extension CRG	Calamus Picture Image
867	File Extension CRH	EN-CC Truss Geometry
868	File Extension CRI	Crystal Reports
869	File Extension CRINF	DecryptorMax Or CryptInfinite Ransomware Affected Data Format
870	File Extension CRL	Certificate Revocation List Format
871	File Extension CRMLOG	Microsoft Windows CRM Log
872	File Extension CRO	CropWat Data Format
873	File Extension CRON	Unraid OS Cron Data Format
874	File Extension CROP	Crick Software Clicker Options Settings Format
875	File Extension CROSSDB	Mixvibes Cross Collection Data Format
876	File Extension CROSSMEDIA	Mixvibes Media Format
877	File Extension CRP	CorelDRAW Corel Presents Run-time Presentation
878	File Extension CRPD	Microsoft Windows SignTool Data Format
879	File Extension CRPLUGIN	ComicRacks Plugin Format
880	File Extension CRPT	Cryptosaurus Encrypted Data Format
881	File Extension CRQ	Blackboard Course Request Data Format
882	File Extension CRR	Complete Genomics Analysis Tools CRR Data Format
883	File Extension CRS	Corel WordPerfect Conversion Resource Format
884	File Extension CRS3	OmniPage Lite
885	File Extension CRT	Security Certificate
886	File Extension CRTR	MultiAd Creator Pro Document
887	File Extension CRTX	Office 2007 Chart Template Format
888	File Extension CRV	CorelDRAW Corel PHOTO-PAINT 10 Custom Gradients Format
889	File Extension CRV3D	Vectric Aspire 3D Drawing Format
890	File Extension CRW	Canon Raw CIFF Image Format
891	File Extension CRWL	Windows Crawl Format
892	File Extension CRX	Chrome Extension
893	File Extension CRY	CryENGINE Map Format
894	File Extension CRYP1	CryptXXX Ransomware Affected Data Format
895	File Extension CRYPROJECT	CryENGINE Project Format
896	File Extension CRYPT	WhatsApp Messenger Encrypted Message Database Backup
897	File Extension CRYPT10	WhatsApp Messenger Encrypted Message Database Backup Format
898	File Extension CRYPT11	WhatsApp Messenger Encrypted Message Database Backup Format
899	File Extension CRYPT12	WhatsApp Messenger Message Database Format
900	File Extension CRYPT5	WhatsApp Messenger Encrypted Message Database Backup
901	File Extension CRYPT6	WhatsApp Messenger Encrypted Message Database Backup
902	File Extension CRYPT7	WhatsApp Messenger Encrypted Message Database Backup
903	File Extension CRYPT8	WhatsApp Messenger Message Database Format
904	File Extension CRYPT9	WhatsApp Messenger Encrypted Message Database Backup Format
905	File Extension CRYPTED	WinOptimizer Encrypted Format
906	File Extension CRYPTOMITE	CryptoMite Encrypted Archive
907	File Extension CRYPTOWALL	Encrypted Format By Cryptowall Ransomware Format
908	File Extension CRYPTRA	Cryptra Encrypted Format
909	File Extension CRYPT_KEYSTORE	BlackBerry 10 Data Format
910	File Extension CRYPZ	CryptXXX Ransomware Affected Data Format
911	File Extension CRYSISJMSF	Crysis Saved Game
912	File Extension CRYSISPSF	Crysis Warhead Saved Game
913	File Extension CRZ	Compressed Poser Character Rigging Format
914	File Extension CS	Visual C# Source Code Format
915	File Extension CS1	Sinar CaptureShop
916	File Extension CS2	CyberStep2
917	File Extension CS4	Sinar CaptureShop 4-shot Image
918	File Extension CS8	Unix Graphics Format
919	File Extension CS80V2	CS-80V Data Format
920	File Extension CSA	PNA Code Calset Format
921	File Extension CSAC	Web Research Collection Optimization Temporary
922	File Extension CSAPLAN	SPSS Analysis Plan Format
923	File Extension CSASSEMBLY	ICQ 6
924	File Extension CSATTR	Microsoft Visual Studio Attractor
925	File Extension CSB	Corel PHOTO-PAINT Script
926	File Extension CSC	18 Wheels Of Steel: Pedal To The Metal Game
927	File Extension CSCFG	Microsoft Visual Studio Cloud Configuration Format
928	File Extension CSCFT	Colasoft Capsa Data Format
929	File Extension CSCNP	Colasoft Capsa Network Profile Format
930	File Extension CSCONT	Capsa Name Table Format
931	File Extension CSCPFLT	Colasoft Capsa Project Filter Format
932	File Extension CSCPKT	Sample Packet
933	File Extension CSCPRO	Colasoft Capsa Protocol Format
934	File Extension CSCPROJ	Colasoft Capsa Project Format
935	File Extension CSCTA	Capsa Time Analyze Data Format
936	File Extension CSCTF	Colasoft Capsa Data Format
937	File Extension CSD	Compact Shared Document
938	File Extension CSDEF	Microsoft Visual Studio Data Format
939	File Extension CSDL	ADO.NET Metadata Format
940	File Extension CSDPROJ	C# Device Project
941	File Extension CSE	Web Research Document Package
942	File Extension CSF	Content Sealed Format
943	File Extension CSGRAD	Microsoft Visual Studio Gradients
944	File Extension CSH	Photoshop Custom Shapes Format
945	File Extension CSHADER	Microsoft Visual Studio Text Data Format
946	File Extension CSHP	ESRI ArcView Shape Data Format
947	File Extension CSHRC	UNIX Command
948	File Extension CSHTML	ASP.NET Razor Web Page
949	File Extension CSI	ContentServ Include Format
950	File Extension CSJ	RIM CSJ Registration
951	File Extension CSK	Claris Works
952	File Extension CSKIN	CD Art Display Skin Format
953	File Extension CSL	CineStyle Color Lookup Format
954	File Extension CSLOG	CodeSite Log Format
955	File Extension CSM	Character Studio Marker Format
956	File Extension CSMANIFEST	ICQ 6 Settings
957	File Extension CSML	Chemical Style Markup Language
958	File Extension CSN	Adobe Code Snippet Document
959	File Extension CSO	CISO Compressed ISO Format
960	File Extension CSOM	Eudora For Mac
961	File Extension CSON	CoffeeScript Object Notation Format
962	File Extension CSP	CorelDRAW Service Bureau Profiler Format
963	File Extension CSPKG	Microsoft Windows Azure Package Format
964	File Extension CSPL	Firefox Data Format
965	File Extension CSPLAN	SPSS Sampling Plan Format
966	File Extension CSPROJ	Visual Studio C# Project
967	File Extension CSQ	Microsoft FoxPro Queries
968	File Extension CSR	Certificate Signing Request Format
969	File Extension CSS	Cascading Style Sheet
970	File Extension CSS1	Cascading Style Sheet
971	File Extension CSSTORE	Apple Mac OS X Cache
972	File Extension CST	Manga Studio Story Format
973	File Extension CSU	Creston 2 - Series Control Systems Update Data Format
974	File Extension CSV	Comma Separated Values Format
975	File Extension CSVIEW	Microsoft Visual Studio Views
976	File Extension CSVX	XML CSV
977	File Extension CSW	Corel WordPerfect Setup Information
978	File Extension CSX	Visual C# Script
979	File Extension CSY	Canvas Symbol Format
980	File Extension CSZ	The Core Media Player Skin
981	File Extension CT	IRIS CT Image Format
982	File Extension CT0	Tajima TBF Condition
983	File Extension CT1	SMS Proposed Site Control
984	File Extension CT2	CTRAN/W Graphical Layout Format
985	File Extension CT3	Casio WK-1800 Keyboard Users Tones Format
986	File Extension CT4IM	CrazyTalk Data Format
987	File Extension CT7	CaseMap Case Analysis Template
988	File Extension CT8	CaseMap Case Template
989	File Extension CTA	ColorTouch Assistant Settings
990	File Extension CTB	AutoCAD Color-Based Plot Style Format
991	File Extension CTBL	Xamine NSCL
992	File Extension CTBODYFITTING	CrazyTalk Animator Actor Fitting Format
993	File Extension CTC	SeeYou Flight Data
994	File Extension CTD	Tomahawk Gold Compressed Tomahawk Document
995	File Extension CTE	Classical Text Editor Document
996	File Extension CTF	AVG Update Control Format
997	File Extension CTFSYS	OS X Mach Kernel System
998	File Extension CTG	BMC Software PATROL Format
999	File Extension CTI	Collectorz.com Template Info
1000	File Extension CTIT	RAR Archive
1001	File Extension CTK	TeKton3D Project
1002	File Extension CTL	Visual Basic UserControl Object Format
1003	File Extension CTM	CrazyTalk Model Format
1004	File Extension CTMDPI	MRMC Markov Reward Model Checker Matrix
1005	File Extension CTN	Cadterns Sloper Format
1006	File Extension CTO	Microsoft Visual Studio Binary Command Table Output
1007	File Extension CTP	CakePHP Template
1008	File Extension CTPROJECT	CrazyTalk Animator Project Format
1009	File Extension CTR	BrainVoyager QX Contrast
1010	File Extension CTRL	Oracle WebLogic Workshop Controls Format
1011	File Extension CTS	CrazyTalk Script Format
1012	File Extension CTSYM	Microsoft Visual Studio Command Table Output
1013	File Extension CTT	Messenger Contact List
1014	File Extension CTV	Citavi Project
1015	File Extension CTV3	Citavi 3 Project Format
1016	File Extension CTX	Valve ICE Encoded Script
1017	File Extension CTXT	BlueJ Context Format
1018	File Extension CTY	SimCity City Format
1019	File Extension CTZ	Custody Toolbox Compressed Backup
1020	File Extension CU	CUDA Source Code Format
1021	File Extension CU1	Photoline 4 Curve
1022	File Extension CU3	Photoline Curves Clut
1023	File Extension CU?	Photoline Clut
1024	File Extension CUB	Analysis Services Cube Format
1025	File Extension CUBE	Antaeus
1026	File Extension CUE	Cue Sheet Format
1027	File Extension CUF	Turbo C Utilities Form Definition
1028	File Extension CUH	CUDA Header Format
1029	File Extension CUI	Autodesk Custom Workspace Format
1030	File Extension CUIX	AutoCAD Custom User Interface Format
1031	File Extension CUJ	Personal Backup Data Format
1032	File Extension CUL	Windows Cursor Library
1033	File Extension CUO	CUDA Object Format
1034	File Extension CUP	SeeYou Waypoint
1035	File Extension CUR	Windows Cursor
1036	File Extension CURRENT	WhatsApp Messenger Encrypted Message Database
1037	File Extension CURSEMOD	Curse Client Mod
1038	File Extension CURSOR	Sun Cursor
1039	File Extension CURSORFX	CursorFX Theme Format
1040	File Extension CURXPTHEME	CursorXP Theme Format
1041	File Extension CUS	AutoCAD Custom Dictionary Format
1042	File Extension CUST	QuarkXPress Mac Format Type
1043	File Extension CUSTOMDESTINATIONS-MS	Microsoft Windows 7 Jump List
1044	File Extension CUT	Dr. Halo Bitmap Image Format
1045	File Extension CUTECUTPROJECT	Cute Cut Project
1046	File Extension CUV	Origin Sample Curve
1047	File Extension CU_	Microsoft Windows Winhelp Compressed
1048	File Extension CV	Microsoft CodeView Information Screen
1049	File Extension CV2	Adobe Audition Data Format
1050	File Extension CV5	Canvas 5 Drawing Format
1051	File Extension CVA	HP Systems Software Manager Information Format
1052	File Extension CVC	CVideo
1053	File Extension CVD	ClamAV Virus Definitions Format
1054	File Extension CVF	CPU-Z Validation Format
1055	File Extension CVG	Calamus Vector Graphic Format
1056	File Extension CVI	Canvas Image Format
1057	File Extension CVJ	Cabinet Vision Solid Job Document Format
1058	File Extension CVL	Coastal Vector Listing Format Format Format
1059	File Extension CVM	Odin Sphere
1060	File Extension CVN	CineVision Encoding Session
1061	File Extension CVP	Portrait Image Format
1062	File Extension CVR	Microsoft Crash Report Format
1063	File Extension CVS	Canvas 3 Drawing Format
1064	File Extension CVSIGNORE	Eclipse CVS Settings
1065	File Extension CVSRC	TortoiseCVS CVS Command
1066	File Extension CVT	Canvas External Tool Format
1067	File Extension CVW	CaseView Document
1068	File Extension CVX	Canvas Drawing Format
1069	File Extension CVZ	Card Vault Inventory
1070	File Extension CW	CardWorks Template
1071	File Extension CW1	Creeper World Game Map Format
1072	File Extension CW2	Creeper World 2 Game Map Format
1073	File Extension CW3	Claris Works Document
1074	File Extension CW7	COMPRESS Related
1075	File Extension CWB	Cakewalk Bundle
1076	File Extension CWC	CADfix Wizard Configuration
1077	File Extension CWD	QNonograms Puzzle Format
1078	File Extension CWDB	ClarisWorks Database
1079	File Extension CWF	CorelDRAW Workspace Format
1080	File Extension CWG	Castle Of The Winds Data Format
1081	File Extension CWGR	ClarisWorks Drawing
1082	File Extension CWIE	CodeWarrior
1083	File Extension CWK	ClarisWorks Document
1084	File Extension CWKS	ClarisWorks
1085	File Extension CWL	ClarisWorks Library
1086	File Extension CWLINK	CodeWarrior
1087	File Extension CWM	WebSphere Map Designer Express Map Definition
1088	File Extension CWMS	CompeGPS Land Remote Map
1089	File Extension CWP	Cakewalk SONAR Project
1090	File Extension CWPT	ClarisWorks Painting Drawing
1091	File Extension CWR	Crystal Reports Report
1092	File Extension CWS	Claris Works Template
1093	File Extension CWSS	ClarisWorks Spreadsheet
1094	File Extension CWT	ClarisWorks Texture Format
1095	File Extension CWW	Crossword Weaver Puzzle Format
1096	File Extension CWWP	ClarisWorks Document
1097	File Extension CWX	Sonar Track Template
1098	File Extension CWY	Songtrix Style Format
1099	File Extension CWZ	Circuit Wizard Format
1100	File Extension CW_	CorelDRAW Workspace
1101	File Extension CX	CodeMapper Script
1102	File Extension CX3	CMS Recorded Video Format
1103	File Extension CXA	ANSYS Fluent Animation Metadata
1104	File Extension CXARCHIVE	CrossOver Bottle
1105	File Extension CXB	Custody X Change Data
1106	File Extension CXBML	Business Process Modeler Model Format
1107	File Extension CXC	Custody X Change Data Format
1108	File Extension CXD	SimplePCI Data Document
1109	File Extension CXE	Common XML Envelope
1110	File Extension CXF	Picasa Collage Format
1111	File Extension CXL	Business Integrator Extract Schema
1112	File Extension CXML	Microsoft Silverlight Server Side Data
1113	File Extension CXP	CX-Programmer Project Format
1114	File Extension CXQ	SillyDl.CXQ Downloading Trojan
1115	File Extension CXR	CX-Programmer Settings
1116	File Extension CXT	Director Protected Cast Format
1117	File Extension CXV	Custody X Change Data
1118	File Extension CXX	C++ Source Code Format
1119	File Extension CYA	Cyana Macro
1120	File Extension CYBERDUCKLICENSE	Cyberduck Donation Key
1121	File Extension CYBERDUCKPROFILE	Cyberduck Connection Profile
1122	File Extension CYI	Clustify Input Format
1123	File Extension CYL	Ribbons Cylinder
1124	File Extension CYO	Clustify Output Format
1125	File Extension CYP	Home Designer Pro Project Format
1126	File Extension CYR	Crysis Level
1127	File Extension CYS	Cytoscape Session Format
1128	File Extension CYT	Yenka Simulation Data Format
1129	File Extension CYW	Rbot.CYW Worm Format
1130	File Extension CZ	Czech Language Translation
1131	File Extension CZD	CAD Zone Drawing
1132	File Extension CZE	Czech Language Localization Format
1133	File Extension CZI	Carl Zeiss Image Data Format
1134	File Extension CZIP	ZipGenius CryptoZip Format
1135	File Extension CZN	RMCProfile Atom List
1136	File Extension CZP	ClozePro Archive
1137	File Extension C_	Microsoft Winhelp Compressed
1138	File Extension C__	C++ Source Code