You can open .DAT files that contain text, with text editors, like Notepad, Notepad++, VS Code, etc. But it is not possible to know what contains in a DAT file.

For example, a DAT file containing video or audio data might be opened using a media player such as VLC, while a DAT file containing program data might be opened using a text editor or a specialized ...

Got a Microsoft Word doc that needs to be a PDF? A JPEG image you want to change to TIFF? Here's everything you need to know about converting file formats.

Here's how you can read and open .DAT files in your Windows 11/10 or macOS PC. These methods will help you to open DAT files working ways.