How to open TEF files

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

What is a TEF file?

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

While we do not yet describe the TEF 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 TEF 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 TEF

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

TEFViewTEFViewUser submitted
TablEditTablEditUser submitted
ToadToadUser submitted
HiJaak ProfessionalHiJaak ProfessionalUser submitted
Toad for MySQL - FreewareToad for MySQL - FreewareUser submitted
Guitar Pro DemoGuitar Pro DemoUser submitted
TEFview .TEF File ViewerTEFview .TEF File ViewerUser submitted
TablEdit, Tablature EditorTablEdit, Tablature EditorUser submitted
Toad for Data AnalystsToad for Data AnalystsUser 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 TEF-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 TEF-files. If you know one, please use the Suggest link below and tell us about it!