This project is inactive and its default file will likely not work with the most recent version of World of Warcraft. The author may have abandoned it, or it may have outlived its usefulness.
TexBrowser is a texture browser for developers and UI modders. It's LoadOnDemand, so you'll need an addon like AddonLoader to load it properly. If you don't want to use one of those, you'll need to do something like: