The .pfc file extension is most commonly associated with America Online applications. With these files, PFC stands for Personal Filing Cabinet. The PFC files are used to store email messages, contact information and user bookmarks.
The .pfc file extension is also used for Corel WordPerfect Perfect Fit filter files, First Choice text files, PF component files, Pegasus Mail message cache files and New Soft Presto! PageManager files.
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If you have additional information about the PFC file format or software that uses files with the PFC suffix, please do get in touch - we would love hearing from you.