Alright The_talented. A .rar file is an archive, which you need Winrar to open. Google it and you should find a download. If you don't have the xml folder in your data folder, you need to download an extractor. Go here: http://eaw.heavengames.com/holocron/index.php?action=view&id=15. Follow the first two sections of that guide (The Tools and Extracting The Files). That should get your XML files out and editable. To edit a specific XML file right-click it and select Open With. Then go to Notepad. Hope that helped.