Did you find or received DUN file and your computer failed to open it? Below we will explain what is DUN file extension and how you can open it.
DUN is a file extension associated with Dunce files.
In most cases your computer should know what software program should be used to open different file types and extensions like DUN. When you double click on the DUN file format, it should open with appropriate software program. If you downloaded or received DUN files for the first time and your system failed to open it then try free file viewers available on the internet after doing enough research not to fall prey to malware.
Finally, if Windows is unable to open file extension DUN you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a registry scan.
You are currently viewing the detail page for DUN file ext. This page contains a detailed description of the DUN file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.