You can turn on the Show Hidden Files option by going to File Explorer > View > Hidden Items. You'll see that there is not only an NTUSER.DAT file, but also one or several more with a LOG extension.

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 usually be in binary code ...

Winmail.dat is a proprietary email file format generated by Outlook or a Microsoft Exchange Server that provides rich-text formatting (like bold, italics, color, and more).

*.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 ...

the .DAT file is the exact same as a .MPG file. if it's for home PC viewing, try re-encoding the file into DivX or ASF using a high bitrate and low keyframe intervals to maintain mpeg-like quality ...

Not just the files interacted via the touchscreen writing feature," Skeggs asserts. If you have a WaitList.dat file on your system and peer inside you can find all sorts of potentially risky ...

To stop sending or receiving winmail.dat attachments in Outlook, you have to configure the Compose mail settings. Here is how to do that.

That winmail.dat file may only be the rich text format (RTF) version of the message you’re already seeing as plain text, in which case all you’re missing is formatting that may not be important.