How to Open a .DAT File. .DAT is a commonly used file extension for saving generic data records. The information contained within a .DAT file depends on the program used to create it, but it will ...

What is the deal with those winmail. dat files? I get them in my email all the time, and nothing seems to be able to open them.

*.dat files are just a generic label for data files, they arent actually a standard type, it can have ANYTHING in it, that being said theres almost definately a dat file editor for age of kings ...

Windows 8/10 file might include scribbled down passwords, emails, and Office texts.

If you regularly receive winmail.dat files from business associates, Letter Opener is well worth the investment.