How to open TFI files

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

What is a TFI file?

TFI files are TI-99 TIFILES file image files, which you can read more about below.

The TFI file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a TFI opener may not be able to open all kinds of TFI files. In this case, though, we only know of one specific use.

TI-99 TIFILES file image

Through our analysis of TFI files, we know that one use of the format is TI-99 TIFILES file image. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

TFI file openers, viewers, etc.

These apps are known to open certain types of TFI files. Remember, different programs may use TFI files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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