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.

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 ...

After reading Where Sticky Notes are Stored, David Kampmeyer asked how to open a Sticky Notes .snt file. It’s a funny thing about Sticky Notes data files. The program is part of Windows Vista ...

Tips on opening a winmail.dat file, keeping seldom-used ink cartridges from drying out, and undoing an Undo.

If the DAT file you're trying to open is text, you can convert the file into text in the Microsoft Excel program by first saving it as a CSV file.