World Of Warcraft: UI Updating Guide

Step 1:
In your World of Warcraft directory, open the Interface/AddOns folder. Within each UI modification there are at least 3 files, the file you want to edit is the ".toc" file. This file can be opened with any text editor like Microsoft Word or Notepad.

Step 2:
At the top of this file you will want to change the version number to 4216.