How to Open a .Data File

By Lindsay Howell

A .data file, sometimes also called a .dat file, is a file containing pertinent information about a program or another file. You don't need a special program to read a .data file -- Notepad, Windows operating system's built-in miniature word processor, can open a .data file, and also gives you the ability to edit the file.

Step 1

Click the "Start" button.

Step 2

Type "Notepad" into the search bar at the bottom of the screen.

Step 3

Click on "Notepad" in the search results under "Programs." Notepad opens up.

Step 4

Click "File," then "Open." Find the folder where the .data file is located, click on the file and click "Open." The .data file is now readable in Notepad.