CMMF file format description

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

1 filename extension(s) found in our database.

.cmmf - CrystalMaker 7-9 Molecule Data

The CMMF data files are related to CrystalMaker. The CMMF file is a CrystalMaker 7-9 Molecule Data. CrystalMaker is a program for building, displaying, manipulating and animating all kinds of crystal & molecular structures. Featuring stunning, real-time graphics and powerful yet accessible tools.

Data files
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CrystalMaker 7-9 Molecule Data related extensions:
CrystalMaker V5 Data File
CrystalMaker V2 Data File
CrystalMaker X Document
CrystalMaker Drawing Data

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

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

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

cmf, cmm, mmf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Creative Labs Music File
SMAF Audio
Corel Multimedia Manager v7 Album
HP Connected Backup Data
ColorSync Utility CMM Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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