I am running Excel 2003 and yesterday I emailed (using Outlook 2003) twice to
different addresses at the same client with .xls attachments. Both times the
attachments arrived as .dat files. When I sent myself one of the messages as
a test, it arrived with the attachment OK and uncorrupted. Any ideas? is it
their virus protection maybe?

UK-Graham wrote:
I am running Excel 2003 and yesterday I emailed (using Outlook 2003) twice to
different addresses at the same client with .xls attachments. Both times the
attachments arrived as .dat files. When I sent myself one of the messages as
a test, it arrived with the attachment OK and uncorrupted. Any ideas? is it
their virus protection maybe?

I would suggest that you are sending in Rich Text Format and your
clients are not using Outlook as their email client. Try sending using
plain text or HTML format instead.

--
Interim Systems and Management Accounting
Gordon Burgess-Parker
Director
www.gbpcomputing.co.uk

What email program are they using?


"UK-Graham" wrote in message
...
: I am running Excel 2003 and yesterday I emailed (using Outlook 2003) twice to
: different addresses at the same client with .xls attachments. Both times the
: attachments arrived as .dat files. When I sent myself one of the messages as
: a test, it arrived with the attachment OK and uncorrupted. Any ideas? is it
: their virus protection maybe?

Try sending in "Plain Text" format to all receivers.

Some email clients(Outlook Express for one) do not handle Rich Text Format and
change the files to *.dat


Gord Dibben Excel MVP


On Fri, 11 Feb 2005 01:43:09 -0800, UK-Graham
wrote:

I am running Excel 2003 and yesterday I emailed (using Outlook 2003) twice to
different addresses at the same client with .xls attachments. Both times the
attachments arrived as .dat files. When I sent myself one of the messages as
a test, it arrived with the attachment OK and uncorrupted. Any ideas? is it
their virus protection maybe?

Gord Dibben wrote:
Try sending in "Plain Text" format to all receivers.

Some email clients(Outlook Express for one) do not handle Rich Text
Format and change the files to *.dat

Think you'll find it's *all* email clients other than Outlook!
:-)