I was wondering if anyone has ever heard of (or been requested to produce) an XPF file. A colleague of mine was requested by a client to produce such a file. I googled XPF, and there is a file extension that matches, but the information about it was scarce. I am wondering if there was some misconmmunication, and they really want an XPT file.
Suggest you confirm what application generates this "file extension" type with your requestor - then do a search on the SAS support website http://support.sas.com/ for additional information, as well as checking the SAS Discussion Forums archives.