You can make Text files open directly in Notepad++ instead of Notepad in Windows 11/10. Learn how to make Notepad++ as the default Text Editor.

Start with text editing software like Windows' built-in Notepad app, or other similar third-party apps like Notepad++. Right-click on the DAT file you want to open and select Open with from the ...

Microsoft decided to fix one of Notepad's longest running problems: garbled text files from other operating systems.