Right-click the DAT file on your PC and click "Open." Click "Select a program from a list of installed programs" and click "OK". Click "Microsoft Excel" from the list of programs on your computer.

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 ...

Opening Local Files The Analyst Application supports many different file formats, including SAS data sets, Excel spreadsheets, Lotus spreadsheets, SPSS portable files, and delimited files. You can ...

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