How to open CH3 files

Did your computer fail to open a CH3 file? We explain what CH3 files are and recommend software that we know can open or convert your files.

What is a CH3 file?

The CH3 file extension indicates to your device which app can open the file. However, different programs may use the CH3 file type for different types of data.

We are aware of 1 different use of the CH3 extension, which you can read more about below.

Harvard Graphics Chart (v3.x)

Through our analysis of CH3 files, we know that one use of the format is Harvard Graphics Chart (v3.x). 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!