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What is MMM? MMM, short name for Manager Multiple-Master, is used as the file extension for Manager Multiple-Master files. .MMM files are binary files that used for the metric data needed by multiple master fonts for the Windows environment. See the sample .MMM file included below.

File Extension: .MMM

MIME Type: application/octet-stream

File Content: Manager Multiple-Master

.MMM files are Manager Multiple-Master files saved as binary files used for the metric data needed by multiple master fonts for the Windows environment. Here are the first 128 bytes of a sample .MMM file, zy______.mmm, dumped in HEX values:

0a 01 01 00 43 6f 70 79 72 69 67 68 74 20 28 63 ....Copyright..c
29 20 31 39 39 32 2c 20 31 39 39 33 2c 20 31 39 ..1992..1993..19
39 34 2c 20 31 39 39 39 20 41 64 6f 62 65 20 53 94..1999.Adobe.S
79 73 74 65 6d 73 20 49 6e 63 6f 72 70 6f 72 61 ystems.Incorpora
74 65 64 2e 20 20 41 6c 6c 20 52 00 30 30 31 2e ted...All.R.001.
30 30 33 00 41 64 6f 62 65 53 65 72 69 66 4d 4d 003.AdobeSerifMM
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

.MMM Manager Multiple-Master file sample: Click sample.mmm to download.

For for information on how to use .MMM Adobe Font Metrics files, see links below:

• Font Formats, File Types and Q&A, by Adobe.