Auto reply with attached file

Hello All,

I'm using the following to auto reply with a plain text message. I would
like to modify this to send a (non-text) ppt file. Is this possible by
changing the cat to another process? IE: some function $HOME/file.ppt ) |
$SENDMAIL -t

Any ideas are appreciated.
TIA

:0 hc
* ^To: (_dot_)*subscribe(_at_)computerstuff\(_dot_)net
* !^FROM_DAEMON
* !^X-Loop: .*
| (formail -r -t -A"Precedence: junk" \
   -I"Subject: You are subscribed" \
   -I"From: Stationery Stuff <newsletter(_at_)computerstuff(_dot_)net>" \
   -A"X-Loop: newsletter(_at_)computerstuff(_dot_)net" ; \
   cat $HOME/welcome.txt ) | $SENDMAIL -t

-- 
Best Regards,

Tim Rice
---------------
Phuket Thailand
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