Just thought I would update this problem, which still has not been solved.
The original .xls file left the sender's computer as an email attachment.
Some where between his computer and Yahoo's server, winmail.dat was added to
the end of the file. Outlook brought the email in but would not take in the
attachment which now was 'file.xls winmail.dat'. I found that file in the
Yahool server mail. From there, I forwarded it to me and it came back as the
original .xls file and I was able to read it. Later this same situation
occurred with a .doc file (MSWord). I went to Yahoo to find the problem and
ended up with a Tech level 2 person. He duplicated the same problem with me
..doc file--he also could not read it as winmail.dat--forward and it can be
read as .doc. He was unable to find the problem and was to call back later.
No call. Will follow up with him if it occurs again.

"Dave Peterson" wrote:

If this .dat file was sent to you via email, read this thread:
http://groups.google.com/groups?thre...F2CC%40msn.com

Especially, Gord's response.

dsears wrote:

Is there any way to "add" to my version 2003 Excel the ability to read .dat
files?

--

Dave Peterson