There are 4 file types use the .MMM file extension:
1. Multiple Master Metric Data File

- Developer N/A
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Popularity
- Category Data Files
- Format Binary
Resource file created for Multiple Master Fonts, which are Type 1 font programs that include two or more "master" fonts within a single font file; contains metric data referenced by .PFM and .PFB files in the Windows Environment; not meant to be manually opened.
The data held in MMM files determine the font axes, which represent the width, weight, and optical size of the font.
NOTE: Must be used with PFM and PFB font files.
Software's name | License | Platforms |
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Included | ![]() |
Updated: January 23, 2014
2. Music Maker Arrangement File

- Developer MAGIX
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Popularity
- Category Audio Files
- Format Binary
An MMM file is an audio project created by MAGIX Music Maker, a digital audio workstation (DAW). It contains a multitrack arrangement, which includes instrumental loops, audio clips, transitions, and effects.
Software's name | License | Platforms |
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Commercial | ![]() |
Updated: August 18, 2018
3. MiraMon Maps File

- Developer CREAF and UAB
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Popularity
- Category GIS Files
- Format Text and Binary
Uncompressed maps file created with MiraMon, a Geographic Information Systems (GIS) program developed cooperatively by the Centre for Ecological Research and Forestry Applications (CREAF) and the University of Barcelona (UAB); contains graphical map data in both vector and raster formats; may also include attached documents or media files.
MiraMon Maps can be compressed into .MMZ files to make them easier to distribute. In order to access individual layers of the map file it must be viewed in the uncompressed format.
Software's name | License | Platforms |
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Paid | ![]() |
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Free | ![]() |
Updated: February 21, 2014
4. Money Manager File

- Developer Moneysoft
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Popularity
- Category Data Files
- Format Text
Data file introduced with version 7 of Money Manager, a personal and business finance application; stores financial data for bank accounts, orders, and transactions; used for tracking personal or company finances and can be used for generating reports in the software.
NOTE: Money Manager version 6 uses .MM6 files.
Software's name | License | Platforms |
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Free Trial | ![]() |
Updated: July 14, 2011