.dat is a very generic file extension that can be used by many programs in different formats. You could try opening it with notepad to at least see what it is. You wouldn't be asking about winmail.dat would you?
.dat files have been known to be used with some video compression... do you know who sent you the file?..if so just ask them ..and if not trash them.....
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.