Opening C3M files
Did your computer fail to open a C3M file? We explain what C3M files are and recommend software that we know can open or convert your C3M files.
What is a C3M file?
Every day users like you submit information to us about specific types of files, and which programs they use to open them.
While we do not yet have a description of the C3M file format and what it is normally used for, we do know which programs are known to open these files. See the list of programs recommended by our users below.
We are constantly working on adding more file type descriptions to the site - the current count exceeds thousand by far, and more information about C3M files will hopefully be added soon.
If you have information about C3M files that you think will be helpful for others, please do use the Submit Info link below and we will add it to this page.
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Generic C3M
These apps are known to open certain types of C3M files. Since many different programs may use C3M files for different purposes, you may need to try a few of the apps to open your specific C3M file.
 | Microsoft Office | User submitted |
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.