How to Open a DAT File

1. Start Notepad (or a better .txt editor, like Editpad).

2.

Open the .DAT-file.If this succeeds, try to spot clues in the file to figure out what kind of data you are dealing with. Proceed accordingly.

3. If you couldn't open the .DAT file with a text-editor (Notepad), try as many other programs as you like.

Suggested programs to open the .DAT file:

* MS Word or Excel (because some .DAT file's are comma-separated-value (.CSV) files.

* .DAT files could also be MS Outlook-files.

* You could also try an IDE (Itegrated Development Environment, a programmers tool).