To install this file, find which head you are wearing in Textools. This will be located under Character>Face. If you are a Wildwood, it will work on faces 1 or 2. If you are a Duskwight, it will be on 101 or 102. Make sure to back up the original file in the event you want to change back by exporting the dds and saving it somewhere. Click Import, then Import From, and locate the downloaded dds file. All done!
You are welcome to message me if you have any issues, but please make sure you read the install instructions first. ♥