An mmm file extension is related to the Adobe Type Manager and used for its multiple-master font metrics.
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.MMM file extension - Adobe Type Manager multiple-master font metrics
What is mmm file? How to open mmm files?
The mmm file extension is associated with a multiple-master font file format. It is a (PostScript Type1) font which contains, in one font description several extreme styles of a font family and code for interpolating between them to produce intermediate designs. Apple has a similar concept for TrueType -- The only name I've seen given to this is "Apple Distortable Font" -- I call both multiple master.
A multiple master font has several axes along which variation may occur. For example a font might allow variation along the Weight axis (everything from Thin to Black), along the Width axis (Condensed to Extended) and along the Optical Size axis (from 6pt to 72pt). The Type1 spec requires that there be a design for every extreme combination along each axis.
This mmm file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open mmm file:
Company or developer:
Adobe Systems Incorporated
Adobe Type Manager (ATM) is used to generate high-quality screen font bitmaps from the PostScript outlines in Type 1 or OpenType format. It is discontinued product.
Company or developer:
Adobe Systems Incorporated
Adobe Type Manager (ATM) is used to generate high-quality screen font bitmaps from the PostScript outlines in Type 1 or OpenType format. It is discontinued product that was also available for Mac.
List of software applications associated to the .mmm file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open mmm file, edit mmm file, convert mmm file, view mmm file, play mmm file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting mmm files.
mmm file viewer - programs that view mmm file - Adobe Type Manager multiple-master font metrics
Programs supporting the exension mmm on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about DiskFonts for view mmm file action.
