How to open OSYM files

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

What is an OSYM file?

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

While we do not yet describe the OSYM 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 OSYM 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!

Various OSYM openers

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

PIC-C CompilerPIC-C CompilerUser submitted
PCWPCWUser 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 OSYM-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 OSYM-files. If you know one, please use the Suggest link below and tell us about it!