How to open CM9 files
Did your computer fail to open a CM9 file? We explain what CM9 files are and recommend software that we know can open or convert your CM9 files.
What is a CM9 file?
The CM9 file extension indicates to your device which app can open the file. However, different programs may use the CM9 file type for different types of data.
While we do not yet describe the CM9 file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about CM9 files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
These apps are known to open certain types of CM9 files. Since many different programs may use CM9 files for different purposes, you may need to try a few of the apps to open your specific CM9 file.