Previously, to open files I’ve had to launch the notepad, then use File -> Open and choose my file. I wanted to register the
.txt file extension with the notepad app, so that I can open files in the notepad by clicking on them. It’s a fairly straightforward thing to do, but I thought it might be helpful to share.
I couldn’t find much information about it, but it’s fairly simple to work out if you use Visual Studio’s Remote Registry Editor to see how other apps do it.