@rudemmon I have tried exporting with KKBP, and it can export models, textures, skeletons, expressions, and more. However, I’m still a beginner and have only managed to modify some basic expressions. I would be really happy if you could help me improve it!

This is the author's Arthas file. I hope you can provide me with some feedback.
I’m sorry that the materials need to be manually selected.
https://tstorage.info/ogdjyajiyukr