Stupid question, and probably very easy answer. Basically, in XP, if I create a Notepad file on the Desktop, and name it something like 'index.html', the file shows up on the desktop as 'index.html'.
https://www.pcworld.com/downloads/file/fid,80985-order,4/description.html (free) starts with the basic text editing provided by the Windows Notepad program, and adds ...