DEK File Extension

What is DEK file?

DEK filename suffix is mostly used for Magic: The Gathering Deck Format files. Magic: The Gathering Deck Format format was developed by Wizards of the Coast. DEK files are supported by software applications available for devices running Windows. Files with DEK extension are categorized as Game Files files. The Game Files subset comprises 1509 various file formats. The most popular program for handling DEK files is Magic: The Gathering Online, but users can choose among 1 different programs that support this file format. Magic: The Gathering Online software was developed by Wizards of the Coast LCC, and on its official website you may find more information about DEK files or the Magic: The Gathering Online software program.

Programs which support DEK file extension

Below is a table that list programs that support DEK files. Files with DEK suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with DEK extension?

There can be multiple causes why you have problems with opening DEK files on given system. Fortunately, most common problems with DEK files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the Magic: The Gathering Online

Problems with opening and working with DEK files are most probably having to do with no proper software compatible with DEK files being present on your machine. This one is an easy one. Select Magic: The Gathering Online or one of the recommended programs (for example, MTG Studio) and download it from appropriate source and install on your system. Above you will find a complete listing of programs that support DEK files, classified according to system platforms for which they are available. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Magic: The Gathering Online website and download the installer.

Step 2. Verify the you have the latest version of Magic: The Gathering Online

If the problems with opening DEK files still occur even after installing Magic: The Gathering Online, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Magic: The Gathering Online is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why DEK files are not compatible with Magic: The Gathering Online. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Magic: The Gathering Online.

Step 3. Associate Magic: The Gathering Deck Format files with Magic: The Gathering Online

After installing Magic: The Gathering Online (the most recent version) make sure that it is set as the default application to open DEK files. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Selecting the first-choice application in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the DEK file
• Click Choose another app and then select More apps option
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the Magic: The Gathering Online installation folder. Confirm by checking Always use this app to open DEK files box and clicking OK button.

Selecting the first-choice application in Mac OS

• Right-click the DEK file and select Information
• Find the Open with option – click the title if its hidden
• From the list choose the appropriate program and confirm by clicking Change for all....
• A message window should appear informing that This change will be applied to all files with DEK extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the DEK file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the DEK file is valid. Being unable to access the file can be related to various issues.

1. Verify that the DEK in question is not infected with a computer virus

If the DEK is indeed infected, it is possible that the malware is blocking it from opening. Scan the DEK file as well as your computer for malware or viruses. DEK file is infected with malware? Follow the steps suggested by your antivirus software.

2. Check whether the file is corrupted or damaged

If the DEK file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the DEK file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle Magic: The Gathering Online

If the systems has insufficient resources to open DEK files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Magic: The Gathering Deck Format file. It is possible that one of the available system or driver updates may solve the problems with DEK files affecting older versions of given software.

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