Every now and then you might encounter a message that contains ATTXXXXX.htm attachment(s): 
If you try to open these, by default they will launch in IE but not open anything or may not display anything meaningful. The reason for this is that the attachment is just a fragment of formatting code from the message body, i.e. html tags. You can see this by right-clicking in the page and selecting View Source:
Archive for December 16th, 2010
Why is my Outlook Message Full of ATTXXXXX.htm, .txt, and .dat Attachments?
Posted by William Diaz on December 16, 2010
Posted in Troubleshooting | Tagged: Outlook | 3 Comments »
Windows Explored 