CH3 File

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

What is a CH3 file?

A .CH3 file is a Harvard Graphics Chart file. Through our analysis of CH3 files, we know that one use of the format is Harvard Graphics Chart . 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 yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Suggest another file format using extension CH3

While we know of one file format using the .CH3 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .CH3 file.