I have a MacBook and got Office for Mac installed. Sometimes if I email a Word or Excel file I created on the MAC to someone’s PC they can’t open it. I’ve then emailed the same file to my desktop PC and then re-emailed it out from the PC and it works. Wierd.
I LOVE my MacBook and would be lost without it!
Try saving it as one of the previous versions of Word from the pulldown before sending it. It should work fine.
When you save your document, make certain you check the "Append File Extension" box below the navigation window... that assures that the .DOC and .EXL extensions required by Windows are added to the file name.