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.

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.

You can create a file without a File Type Extension in Windows 11/10 by carefully following the steps laid down in this post.