.MUN File Extension
Windows System Resource Archive
| Developer | Microsoft |
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What is a MUN file?
A MUN file is a compressed file that contains Windows system resources, including the icons used by a system-level Windows program. Most MUN files are found in the C:/Windows/SystemResources directory, though some are found in application-specific directories. Typically, MUN files have filenames that end in .exe.mun or .dll.mun.
More Information
In May 2019, Windows 10 began storing certain system resources in MUN files. Most notably, MUN files contain the icons used by many system-level and pre-installed Windows programs, such as Control Panel and Microsoft Paint.
Most often, MUN files are associated with corresponding .EXE or .DLL files. For example, mspaint.exe.mun is associated with mspaint.exe, the executable file that launches Microsoft Paint. However, MUN files themselves are not executable files or libraries. Rather, they are compressed archives that contain files referenced by a program or library.
How to open a MUN file
If you are simply looking to access and save a copy of the icons stored within a MUN file, you can use Nirsoft IconsExtract to extract MUN icons and save them as .ICO files. To do so, open IconsExtract, select , and then browse to and search the C:/Windows/SystemResources directory.
If you want to explore all the files contained within a MUN archive, you can open and explore the archive with 7-Zip. Note, however, that you cannot use 7-Zip to automatically extract the files contained within a MUN archive. You can, however, use it to manually copy the files contained within a MUN file to a new folder.