How to open CATOM files

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

What is a CATOM file?

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

While we do not yet describe the CATOM 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 CATOM 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 CATOM

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

Chief Architect PremierChief Architect PremierUser submitted
Chief Architect Premier TrialChief Architect Premier TrialUser submitted
Home Designer ArchitecturalHome Designer ArchitecturalUser submitted
Home Designer ProHome Designer ProUser submitted
Home Designer Pro TrialHome Designer Pro TrialUser submitted
Chief Architect Interiors TrialChief Architect Interiors TrialUser submitted
Home Designer EssentialsHome Designer EssentialsUser submitted
Home Designer SuiteHome Designer SuiteUser submitted
Home Designer InteriorsHome Designer InteriorsUser submitted
Chief Architect ViewerChief Architect ViewerUser submitted
Chief Architect LiteChief Architect LiteUser submitted
Home Designer Landscape and DeckHome Designer Landscape and DeckUser submitted
Chief Architect InteriorsChief Architect InteriorsUser 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 CATOM-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 CATOM-files. If you know one, please use the Suggest link below and tell us about it!