Right-click on the DAT file you want to open and select Open with from the drop-down menu, then choose the text editor. If the DAT file is a video, you can open it with its associated video app.

If you're having trouble opening a DAT file, I'll show you a simple and free way to do it. This method works on both Mac and PC. Just open your browser and go to winmaildat.com. It's a ...

I use vcdxrip for stripping the dat file to an mpeg file. If you're using Windows, there's a free GUI package of the vcdimager tools HERE. <BR><BR>Converting the mpeg1 file to mpeg2 would require ...

Q. I sometimes receive e-mail messages with a “winmail.dat” file attached that I cannot open. Why does this happen, and what can I do to fix it? A. The winmail.dat file usually appears because ...

To disable this file format in Outlook on Windows, ... On the Mac, TNEF’s Enough, can open winmail.dat files. If you are on an iOS device, try Winmail File Viewer.