You can open .DAT files that contain text, with text editors, like Notepad, Notepad++, VS Code, etc. But it is not possible to know what contains in a DAT file.

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 ...

Though DAT files, which house data as the shortened name implies, are usually best left alone, here's how you can open them.

How to Open a DAT File in Word. File extensions usually tell your computer something about a particular file and how to open it. For instance, when the computer encounters a DOCX file, it will use ...

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.

Many times when receiving mail attachments with the new Exchange-enabled Microsoft Entourage v.X from Windows users, you will get a winmail.dat file that is inaccessible under Mac OS X. Alan Sill ...

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