I have created an excel file and send it out in the email as an attachment.

When I went to the send box in the email and retrieve the mail, but could
not open the excel file.

Then I asked the receipient to resend the file back to me.

Upon receipt of the file, I saved it to my desktop and when I double click
on the file. It is giving me a blank screen, without even the excel format.

Can somebody tell me what is the cause of this error.