If the DAT file is a video, you can open it with its associated video app. However, if you aren't sure what app it's intended for, VLC Media Player should be able to open it as well.

Tokens.dat file in Windows 11/10 is a digitally signed file, which stores most of Windows activation files. Learn how to rebuild Tokens.dat file in Windows.

When you double-click on a file in Windows, it will automatically open a default program that is configured to manage these types of files. It is common, though, want or need to use a different ...

Machines running Windows XP Service Pack 3 using the 5958 definitions will delete the file, causing many key Windows services to fail to start. The Windows file is being mistakenly detected as W32 ...

Windows XP wasn't vulnerable to the WannaCry worm but still could be infected with the ransomware. Now there's a tool to decrypt Windows XP machines attacked by WannaCry.

The name NTUSER.DAT comes from Windows NT, introduced with Windows 3.1, and the DAT extension is used by Microsoft for files that contain data. Where to find an NTUSER.DAT file? First of all, you ...