Some email servers block attachments that are executable files which may also include xls files. But if you are actually receiving the attachment and cannot open it try saving it first to My Documents or to the desktop, then quit Outlook and go to that location and open it from there.
Hope this helps. Let me know if you have any questions.
What exactly do you mean by 'it did not save'. Were you able to get the Save As dialog box to choose a location to save it to? What happened then?
Can you find that file on your computer?
Ok, let's first rule out the possibility that the file itself isn't corrupt. Try to send two email messages addressed to yourself. With the first attach an excel file, and with the second attached a standard .txt file. Make sure to choose files that can be opened and are not large in size.
When you have received the 2 mail messages back try to open or save the files and let me know what happens.
That sounds like you have a problem with your excel application and not with Outlook.
Ok, have you sent the file (i.e. the .txt file) as I suggested. If so please let me know if you were able to open the received file.