MUF file format description

Many people often share .muf files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .muf files. To address this issue, we have created this page to offer assistance and guidance on handling .muf files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .muf files.

Our aim is to simplify the process and promote seamless use of the .muf file format.

2 filename extension(s) found in our database.

.muf - Alpha Five Concurrent Users Data

The MUF development files are related to Alpha Five. The MUF file is an Alpha Five Concurrent Users Data. Alpha Five is a beginner friendly application development environment. Alpha Five creates temporary .MUF files to control the number of people who can concurrently open a database.

Application:Alpha Five
Category:Development files
Magic:- / -

Alpha Five Concurrent Users Data related extensions:

  • v V++ VPascal Source Code
  • ddif Tally.ERP 9 Metadata
  • ssdl Store Schema Definition Language Data
  • dotfuproj Microsoft Visual Studio Dotfuscator Project
  • dse DAZ Studio Encrypted Script
  • zrp RapidPLUS Application Package

.muf - ProtoMuck Multi User Forth Program

The MUF development files are related to ProtoMuck. The MUF file is a ProtoMuck Multi User Forth Program. ProtoMUCK is a MUCK server program that is the direct descendant of NeonMUCK.

Category:Development files
Magic:- / -

ProtoMuck Multi User Forth Program related extensions:

  • strings Mac OS X Strings Resource File
  • scc Microsoft Visual SourceSafe File
  • sfd PDP-10 Sub File Directory Data
  • ece Escenic Content Engine Dynamic Page
  • wsi Wise Package Studio Installer Package
  • llp VersaPro Compiled Local Logic Block

Be careful.

It is important to understand that the .muf file extension is not limited to a particular set of applications. Other programs besides the intended ones can also use the .muf extension to create files. This includes potentially harmful programs or malware that may generate .muf files for various purposes. Be especially cautious with .muf files coming from untrusted or unknown sources.

Can't open a .muf file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize an extension, you receive the following message:

Select an app to open this .muf file

To set the .muf file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. Under the Default apps section, you will find various categories such as Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate, such as Photos for image files or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the desired app is not listed, click on More apps to see additional options or click on Look for an app in the Microsoft Store to search for apps in the Store.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set .muf file association. Many applications can open .muf files without requiring any specific file association to be set.

The .muf file extension is often given incorrectly

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. Our goal in providing this list is to help users find the right information more easily and enhance their overall search experience on our website.

These misspellings were the most common in the past year:

huf, kuf, luf, mf, mfu, mhf, mif, mjf, mkf, mu, mub, muc, mud, mug, mur

Is it possible that the filename extension is misspelled?

There is a possibility that the .muf filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .muf:

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

Verified by

The verification conducted by the team ensures that the information presented is accurate, reliable, and thoroughly researched. Users can rely on as a trusted source of information, knowing that their team's dedication to verification and quality control provides a dependable resource for staying informed. is not liable for the content and accuracy of external links, even if we exercise careful control over them.

If you find the information on this .muf page useful, please feel free to link to this page. >> MUF file