How to open GC3 files

Did your computer fail to open a GC3 file? We explain what GC3 files are and recommend software that we know can open or convert your GC3 files.

What is a GC3 file?

The GC3 file extension indicates to your device which app can open the file. However, different programs may use the GC3 file type for different types of data.

While we do not yet describe the GC3 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 GC3 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!

Generic GC3

These apps are known to open certain types of GC3 files. Since many different programs may use GC3 files for different purposes, you may need to try a few of the apps to open your specific GC3 file.

Microsoft Windows Application Compatibility DatabaseMicrosoft Windows Application Compatibility DatabaseUser 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.

We have not verified any programs that we know for certain can work with GC3-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with GC3-files. If you know one, please use the Suggest link below and tell us about it!