DUN File Extension

What is DUN file?

DUN is a file extension commonly associated with Dungeon Defenders Saved Game Format files. Dungeon Defenders Saved Game Format format was developed by Trendy Entertainment. DUN file format is compatible with software that can be installed on Android, iOS, Mac OS, Windows system platform. DUN file belongs to the Game Files category just like 1509 other filename extensions listed in our database. The most popular program for handling DUN files is Dungeon Defenders, but users can choose among 3 different programs that support this file format.

Programs which support DUN file extension

The following list contains programs grouped by 4 operating systems that support DUN files. DUN files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with DUN extension?

Problems with accessing DUN may be due to various reasons. On the bright side, the most encountered issues pertaining to Dungeon Defenders Saved Game Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. We have prepared a listing of which will help you resolve your problems with DUN files.

Step 1. Install Dungeon Defenders software

The most common reason for such problems is the lack of proper applications that supports DUN files installed on the system. The solution is straightforward, just download and install Dungeon Defenders. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. If you want to download Dungeon Defenders installer in the most secured manner, we suggest you visit website and download from their official repositories.

Step 2. Check the version of Dungeon Defenders and update if needed

If the problems with opening DUN files still occur even after installing Dungeon Defenders, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Dungeon Defenders is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of Dungeon Defenders installed, it may not support DUN format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Dungeon Defenders.

Step 3. Set the default application to open DUN files to Dungeon Defenders

After installing Dungeon Defenders (the most recent version) make sure that it is set as the default application to open DUN files. The method is quite simple and varies little across operating systems.

Change the default application in Windows

• Right-click the DUN file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• Finally select Look for another app on this PC, point to the folder where Dungeon Defenders is installed, check the Always use this app to open DUN files box and conform your selection by clicking OK button

Change the default application in Mac OS

• By clicking right mouse button on the selected DUN file open the file menu and choose Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• Finally, a This change will be applied to all files with DUN extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the DUN is not faulty

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper DUN file. Problems with opening the file may arise due to various reasons.

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

If the DUN is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. DUN file is infected with malware? Follow the steps suggested by your antivirus software.

2. Check whether the file is corrupted or damaged

If you obtained the problematic DUN file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the DUN 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 Dungeon Defenders

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

5. Ensure that you have the latest drivers and system updates and patches installed

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Dungeon Defenders Saved Game Format files. It may be the case that the DUN files work properly with updated software that addresses some system bugs.

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