This short tutorial describes how to set Notepad++ as default editor for .xml files. Simply register the extension in the app's preferences.

Windows only: If you're delving into XML programming for the first time, or want to tweak a few software files, Microsoft's XML Notepad 2007 may be the no-nonsense editor you're looking for.

Name it and enter in the Long and Lat, you can do this by opening the XML file in notepad and looking at the data there, for this example, we're going to use Seattle.