.att extension

[msoffq]

I have searched high and low, and can't find what a file with a .att extension is. I don't want to ask the user, but an attachment in an email had this extension.
Please help, thanks in advance.

 

[edfair]

suspect your user had a file with no extension and renamed it .att to indicate an attachment. Ed Fair
efair@atlnet.com

Any advice I give is my best judgement based on my interpretation of the facts you supply.

Help increase my knowledge by providing some feedback, good or bad, on any advice I have given.