outlook attachment

[sherry]

I HAVE RE'D AN E MAIL WITH AN ATTACHMENT WHICH IS AN IRS
TAX FORM WHICH SHOULD OPEN WITH ADOBE. WHEN I TRY TO OPEN
THIS ATTACHMENT, ADOBE TRYS TO OPEN, BUT THEN I GET AN
ERROR MESSAGE SAYING IT IS NOT ABLE TO OPEN AND THAT THE
ATTACHMENT MAY NOT HAVE BEEN SENT WITH THE PROPER
ENCODING. HOW CAN I OPEN THIS ATTACHMENT AND WHAT, IF
ANYTHING, SHOULD I ADVISE THE SENDER TO DO TO ENABLE ME
TO OPEN THIS.

THANKS
SHERRY