How to open FDFF files
Did your computer fail to open a FDFF file? We explain what FDFF files are and recommend software that we know can open or convert your FDFF files.
What is a FDFF file?
The FDFF file extension indicates to your device which app can open the file. However, different programs may use the FDFF file type for different types of data.
While we do not yet describe the FDFF 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 FDFF 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!
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Generic FDFF
These apps are known to open certain types of FDFF files. Since many different programs may use FDFF files for different purposes, you may need to try a few of the apps to open your specific FDFF file.
 | Fast Duplicate File Finder | User submitted |
 | Fast Duplicate File Finder Pro | User 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.