I'm using Office:mac for OS X, and from my experience, the only compatibility issue was an "incorrect setting" on my Mac side: In the save window, be sure that there is a check in the box labeled "append file extension." This puts the "PC suffixes" (.doc, .xls, etc.) at the end of your file names-- seems that some versions of PC office need these extensions, even though the mac side doesn't.... If you're in the habit of saving with the extensions, you'll have no compatibility problems... Jack "Trevor J. Hutley" wrote: > ...Does anyone have anything tosay about this, or any Link to point me > to, for "Chapter and Verse" on the compatibility issue. > > This would be make-or-break information, as to whether my friend switches.