How to open FEF files

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

What is a FEF file?

FEF files are Patton-Patton Flow Charting 3 Export Filter files, which you can read more about below.

The FEF 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 FEF opener may not be able to open all kinds of FEF files. In this case, though, we only know of one specific use.

Patton-Patton Flow Charting 3 Export Filter

Through our analysis of FEF files, we know that one use of the format is Patton-Patton Flow Charting 3 Export Filter. 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!