1. Hi guys, I have a weird question... If I were to make a custom XML file (one that does not follow the World of Warcraft UI spec) and saved it in the addon's folder, would it be possible at all to read this XML file into the addon's LUA script?

    Your XML file wouldn't work unless it contained elements and attributes defined in UI.xsd, which is the XML schema Blizzard uses for its user interface.

    No, you can't have useful data files. You could store the data in a Lua string and then access it that way.