Hmmmm....
Thanks for all the responses. So after looking at the link to the Mime with SSL I think that should work(?). I guess the line that indicates the attachment is:
TmplOptions => \%options,
So, out of curiosity, why isn't there a package that does this? I don't think what I am doing is so obscure (writing an email with an Excel spreadsheet attached).
In any case, if you guys think it should work, I will figure it out with trial and error to I get it.
Thanks,
Ryan