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