How to open AFF files

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

What is an AFF file?

The .aff file extension is used by a variety of software applications for a broad range of file formats. The .aff file extension is most commonly used by the Mozilla Firefox Internet browser. These AFF files contain dictionary files used by the software for spell check purposes.

The .aff file extension is also used for disk image files, AnyForm files, Affix files, Nvu files, AGEMA files and Acorn vector files.

Software that will open, convert or fix AFF files

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

AspexDrawAspexDrawUser submitted
Post Acquisition Tool SuitePost Acquisition Tool SuiteUser submitted
We have not verified any programs that we know for certain can work with AFF-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 AFF-files. If you know one, please use the Suggest link below and tell us about it!