PFC is an extension of files used in IT solutions offered by AOL. PFCs are files that contain most e-mail messages, but they can also store contact details or bookmarks. PFCs are files that are not intended to be edited by the user. They often have a hidden attribute.

PFC files are intended for use by AOL only. Although there are solutions that allow you to export such data, e.g. for other e-mail clients.