>> MU3 file

MU3 file format description

Many people share .mu3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .mu3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .mu3 files.

1 filename extension(s) found in our database.

.mu3 - Myriad Packed Musical Score

The MU3 audio files are related to Melody Assistant. MU3 file is a Myriad Packed Musical Score.

Melody Assistant
Audio files
- / -
Myriad Packed Musical Score related extensions:
MadTracker 2 Extension
MadTracker Envelope
MadTracker Pattern
MadTracker 2 Music Module
MadTracker Sample
MadTracker Instrument

Naturally, other applications may also use the .mu3 file extension. Even harmful programs can create .mu3 files. Be especially cautious with .mu3 files coming from an unknown source!

Can't open a .mu3 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 a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .mu3 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

m3, m3u, mu, mur, nu3, um3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Kerbal Space Program Mesh Data
Atari ST Disk Image
Modula-3 Source Code
Norton Utilities Backup Data
M3U Playlist File
eXtendable Wad Editor UM3 Data

Operating systems currently supports the following operating systems:

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

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If you have useful information about the .mu3 file format, then write to us!