So lets say you downloaded a mod for the united version of the Failure's Skirt. The redux way to make sure they are converted in the right sized. You're Safeguarded, go in-game and enjoy. You can also not-click on the TTMP file, which will bring up this same year. Now lever on Import and wait for it to find, you can close TexTools afterwards. A new window opens up showing you what files are in the ModPack.
Now you will see a new pop up asking to change a TTMP file.