These .EFX files are used by eFax to both send and receive faxes. If receiving a fax, an email is received to a user's email inbox with an attachment which contains the body of the fax. If sending a fax, the user attaches an .EFX file to an email and sends through to eFax - who then strip the attachment and send the fax to the number in the header.
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Bert D'Agostino
2007-03-15 02:07:24
#1
How do I open and read a file with the extension .efx