Tips to open COL file

Can't open the COL file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open COL files as well as a list of programs that support COL files.

COL file extension

File Name Capture One Session Format
File Developer Phase One
File Category Data Files

The COL file is supported on 3 operating systems. Depending on your operating system, you may need different software to handle the COL files. Below is a summary of the number of programs that support and open the COL file on each system platform.

Operating systems
  • 2
  • 1
  • 0
  • 0
  • 0
  • 0

What is COL file?

The file with the extension COL is the Data Files file type. The author of this format is Phase One. Additionally, the Data Files category contains 1326 of other files. Capture One Session Format is most often found on 3 operating systems. The file will work on , Mac OS, Windows systems, unfortunately not on others. This file type can also be opened by 3 other programs. The AutoCAD, Autodesk Animator programs will also handle the file when the Phase One Capture One program does not fulfill its role.

How to open COL file?

The main problem with Capture One Session Format is that the COL file is incorrectly associated with programs. Thus, when you open COL, the program selection wizard or some other program starts. This problem can be easily remedied.

The first thing you should do is just "doubleclick" on the COL file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Phase One Capture One

In this case, you should first verify that the Phase One Capture One application is installed on the computer. To do this, enter the name Phase One Capture One into the system search engine. If it is not, installation may solve the problem, as most applications create file associations during installation. Below you will find a list of applications that support COL files.

Programs to open COL file

Remember to download programs supporting COL files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Phase One Capture One with COL files

If the application is or has been freshly installed, but the COL file still does not use the Phase One Capture One program, it means no association. This option is available from the level of Properties of a specific file available in the context menu. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Changes can be made using the "Change" button. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. The "always use the selected program ..." field will set the Phase One Capture One application as the default for handling the COL file.

Step 3. Update Phase One Capture One to the latest version

If, however, after binding Phase One Capture One with Capture One Session Format there were still problems, you should update the program to the latest version.

Step 4. Check for the following problems with the COL file

If the above steps do not help, you can assume that the file itself is not correct. This could be due to the file itself, the cleanest issues are:

Very often, the file may be size 0 or incomplete. This is most often caused by a problem while downloading the COL file. The only repair option is to download the file again.
The most common cause here is computer viruses. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Alternatively, you can use the scanners available online. For the best results, we will scan the entire operating system, not just our COL file. However, remember that not every infected COL file can be recovered, so it is important to take care of regular backups.
A typical compatibility error - the program does not support the older version of the COL file. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for this. The repair method must be adapted to the type of file and damage. Some programs offer the option of recovering data from damaged COL files.
The program indicates that the file is encrypted or corrupted. The encrypted file COL except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. While there is usually no problem reading such a file, it may not be possible to save it. It is best to move COL to a different directory.
This problem only occurs with more complex files. In this case, the COL file is blocked by the first application to open it. Running programs (including those in the background) should be verified. Sometimes it is necessary to wait a while before referencing the COL file again. Some anti-virus or backup software may occupy the COL file for a certain period of time. If nothing helps, please reset the device.