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>> 3MM file

3MM file format description

Many people share .3mm files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .3mm file can be edited, converted or printed with. On this page, we try to provide assistance for handling .3mm files.

1 filename extension(s) found in our database.

.3mm - 3D Movie Maker Project

3MM file is a 3D Movie Maker Project. 3D Movie Maker is a program created by Microsoft's "Microsoft Kids" subsidiary in 1995.

.3mm file format description:
3MM format description not yet available
3D Movie Maker
Multimedia files
- / -
3D Movie Maker Project related links:
3DMM Community
3D Movie Maker Project related extensions:
3D Movie Maker Video

Naturally, other applications may also use the .3mm file extension. Even harmful programs can create .3mm files. Be especially cautious with .3mm files coming from an unknown source!

Can't open a .3mm 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 .3mm file extension is often given incorrectly!

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

3ml, rmm, emm, wmm, mm

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

SimStudio 3D Model
World Magnetic Model Data
EARS Mail Merge Definition
Street Fighter IV Model
Matrix Market File
FreeMind MindMap

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

If you have useful information about the .3mm file format, then write to us!