Tips to open DT1 file
Can't open the DT1 file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open DT1 files as well as a list of programs that support DT1 files.
DT1 file extension
| File Name |
DTED Level 1 Format |
| File Developer |
National Geospatial-Intelligence Agency |
| File Category |
GIS Files |
The DT1 file is supported on 2 operating systems. Depending on your operating system, you may need different software to handle the DT1 files. Below is a summary of the number of programs that support and open the DT1 file on each system platform.
What is DT1 file?
The file in the DT1 format belongs to the GIS Files category. The creator of this file is National Geospatial-Intelligence Agency. In addition to this file, the GIS Files category includes 255 related files. DTED Level 1 Format is most often found on 2 operating systems. Although it can be found with greater or lesser success on any operating system, it will only be useful on Linux, Windows. It is recommended to use FME Desktop to handle this file. This is a program created by Safe Software Inc.. There are also 3 alternative programs to handle the DT1 file. The ArcGIS Desktop, MapInfo programs will also handle the file when the FME Desktop program does not fulfill its role.
How to open DT1 file?
The most common problem when using DTED Level 1 Format is that a specific DT1 is not associated with the program. Thus, when you open DT1, the program selection wizard or some other program starts. This can be quickly resolved by following the instructions below.
The first thing you should do is just "doubleclick" on the DT1 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 FME Desktop
In this case, you should first verify that the FME Desktop application is installed on the computer. The easiest method is to use the system search engine by entering the program name FME Desktop in it. 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 DT1 files.
Programs to open DT1 file
Remember to download programs supporting DT1 files only from verified and safe sources. We suggest using the websites of software developers.
Step 2. Create association of FME Desktop with DT1 files
If, despite the installed application, the DT1 file does not start in the FME Desktop application, you must create a file association. This option is available from the level of Properties of a specific file available in the context menu. Information about the file and the program that the file is associated with are available here. Changes can be made using the "Change" button. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. Checking the "Always use the selected program ..." box will permanently associate the DT1 file with the FME Desktop program.
Step 3. Update FME Desktop to the latest version
If, however, after binding FME Desktop with DTED Level 1 Format there were still problems, you should update the program to the latest version. Some applications allow you to update from the program level, and for others you need to download the installer from the Safe Software Inc. page and install.
Step 4. Check for the following problems with the DT1 file
Of course, it may happen that despite the above steps, the file still does not work. This could be due to the file itself, the cleanest issues are:
The affected file may be 0 KB or smaller than expected. This suggests truncating the DT1 file contents when downloading or copying. Downloading the file again should fix the problem.
The operating system may be infected with a computer virus. A virus scan using an up-to-date antivirus program should fix the problem. If this is not possible, you can use the online scanner. The scan should cover the entire computer, not only the DT1 file that we want to open. Sometimes virus-infected DT1 files cannot be recovered, so make a backup in advance.
A typical compatibility error - the program does not support the older version of the DT1 file. These problems are known and are often very easy to fix using the software developers's website.
The file may be corrupted in a number of ways. The repair method must be adapted to the type of file and damage. Some programs offer the option of recovering data from damaged DT1 files. The easiest way to restore the file is from a backup or by contacting National Geospatial-Intelligence Agency, but this one can be expensive. Not all damage can be reversed.
When reading, a message appears that the file was encrypted or corrupted. The encrypted file DT1 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.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. While there is usually no problem reading such a file, it may not be possible to save it. Copying the DT1 file to another location will fix the problem.
This problem only occurs with more complex files. In this case, the DT1 file is blocked by the first application to open it. Running programs (including those in the background) should be verified. Sometimes you have to wait for the session to the file DT1 to close. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If this does not work either, restart the device.
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