How to open C4M files

Did your computer fail to open a C4M file? We explain what C4M files are and recommend software that we know can open or convert your files.

What is a C4M file?

The C4M file extension indicates to your device which app can open the file. However, different programs may use the C4M file type for different types of data.

We are aware of 1 different use of the C4M extension, which you can read more about below.

Clonk Material definition

Through our analysis of C4M files, we know that one use of the format is Clonk Material definition. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!