Having problems opening a MM file?

We have programs that can open or convert your MM files.

Opening MM files

Did your computer fail to open a MM file? We explain what MM files are and recommend software that we know can open or convert your MM files.

What is a MM file?

The .mm file extension is most commonly associated with the FreeMind open source mind-mapping software application. The MM files contain visual diagrams that are created with the software. They are commonly used for research, brainstorming, project management and note taking.

The .mm file extension is also used for Meme virtual reality world files, Metamath ASCII database files, MultiMate Advantage II text document files, Groff source in mm format files, Lightscape material map files, Macro Mania macro files, Rise of Nations campaign media files and Apple Xcode core C program files.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension MM

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the MM file format or software that uses files with the MM suffix, please do get in touch - we would love hearing from you.