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.
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File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the AFF file format or software that uses files with the AFF suffix, please do get in touch - we would love hearing from you.