How to open 12F files

Did your computer fail to open a 12F file? We explain what 12F files are and recommend software that we know can open or convert your 12F files.

What is a 12F file?

The 12F file extension indicates to your device which app can open the file. However, different programs may use the 12F file type for different types of data.

While we do not yet describe the 12F 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 12F 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 12F

These apps are known to open certain types of 12F files. Since many different programs may use 12F files for different purposes, you may need to try a few of the apps to open your specific 12F file.

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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 12F-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 12F-files. If you know one, please use the Suggest link below and tell us about it!