Many configuration or initialization file types are just plain ASCII files and it would be very convenient if they could be edited easily. You can view or edit a file easily by double clicking on it only if that particular file type has been registered and a viewing or editing application has been specified. But these files might have many different file types and extensions.
The next easiest method is to copy the shortcut to an ASCII editor to the Send To folder. Notepad and Wordpad are examples of such ASCII editors. Then when you right-click on this file, or any file for that matter, and select Send To from its context menu, the ASCII editor will be part of the list. Just select the editor and the editor will be launched and open the file.