The Windows operating system uses the file extension to understand how to open a file. For example, when you double-click to open a TXT file, Notepad probably opens it.

Notepad always opened .txt files, but I changed to MSWorks after Notepad stopped working. I fixed Notepad, and want to change back to it (to open .txt files). The problem with Notepad was that the ...

A reader would like to know how to change the default program his computer uses to open .jpg files when he double-clicks on a photo file. Most computers will use their operating system’s default ...

You can view a Text file in Command Prompt or PowerShell in Windows 11/10. You can view the entire content of TXT, a specific line, etc.