Tips to open DEK file

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

DEK file extension

File Name Magic: The Gathering Deck Format
File Developer Wizards of the Coast
File Category Game Files

The DEK file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the DEK files. Below is a summary of the number of programs that support and open the DEK file on each system platform.

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

What is DEK file?

The file in the DEK format belongs to the Game Files category. It was designed by Wizards of the Coast. In addition to this file, the Game Files category includes 1509 related files. Magic: The Gathering Deck Format appears on 1 operating systems as a functional file. The file will work on Windows systems, unfortunately not on others. It is recommended to use Magic: The Gathering Online to handle this file. This is a program created by Wizards of the Coast LCC. Alternatively, you can use 1 other programs. You can use MTG Studio in case Magic: The Gathering Online cannot be used.

How to open DEK file?

The most common problem when using Magic: The Gathering Deck Format is that a specific DEK is not associated with the program. Thus, when you open DEK, the program selection wizard or some other program starts. How to solve such a problem?

The first thing you should do is just "doubleclick" on the DEK 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 Magic: The Gathering Online

In this case, you should first verify that the Magic: The Gathering Online application is installed on the computer. The easiest method is to use the system search engine by entering the program name Magic: The Gathering Online in it. If we do not have this program, it is worth installing it, as it will help you automatically associate the file DEK with Magic: The Gathering Online. Below is a list of programs that support the file DEK.

Programs to open DEK file

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

Step 2. Create association of Magic: The Gathering Online with DEK files

However, it may happen that the application itself does not cause the DEK file to open in the Magic: The Gathering Online application, but you can set it manually. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. The displayed window will contain information about the program that supports this type of file. Using the "Change" button we can set the program to handle this type. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. The "always use the selected program ..." field will set the Magic: The Gathering Online application as the default for handling the DEK file.

Step 3. Update Magic: The Gathering Online to the latest version

The fault may also lie with the Magic: The Gathering Online program, it is possible that Magic: The Gathering Deck Format requires a newer version of the program. In this case, use the Wizards of the Coast LCC website or update the program from the application.

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

The problem may also be with the file itself if the above steps don't work. This could be due to the file itself, the cleanest issues are:

Very often, the file may be size 0 or incomplete. This suggests truncating the DEK file contents when downloading or copying. The only repair option is to download the file again.
The computer may have fallen victim to a computer virus or hacker. Perform a virus scan using available and up-to-date anti-virus software. If this is not possible, you can use the online scanner. However, it is important to scan the entire system, not only the file DEK or the program directory. As a result of the scan, sometimes it is not possible to recover DEK files, which are deleted if there is a backup of this file, then after restoring it, it must also be scanned.
This can happen especially when the program is dynamically developed and the structure of the DEK files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
The file may be corrupted in a number of ways. Depending on the type of file, it is necessary to repair it accordingly. Some programs offer the option of recovering data from damaged DEK files. You can restore the file from a backup or use Wizards of the Coast help.
The program indicates that the file is encrypted or corrupted. The encrypted DEK files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. The problem is only writing to the file, not reading it. It is best to move DEK to a different directory.
This problem usually affects more complex files. Some file types can only be opened in one program at a time. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If the problem persists, restart the machine.