Getting a DAT file open on your Windows machine can require one of a few different approaches — to be determined by the kind of data the DAT file contains. Start with text editing software like ...

How to open files on a Chromebook The Files app makes it easier to find and open files on ChromeOS. Like other operating systems, you only need to double-click a file to open it most times.

If the How do you want to open this file keeps popping up in Windows 11/10, select the default app. If this does not work, use these fixes.