Display Attachment failed on Microsoft Excel

[Francis P. Ling]

I notice a problem when it comes to "Display Attachment" on Excel
Documents.

The "Download" feature works fine, but the "Display" part will convert the
document into HTML file. The Word (.doc) will open correctly.

Another weird thing is that doc/xls attachment sent via other mailer (eg,
UUCP) will not be displayed normally.


Any idea?