...it didn't work...apparently the file was a .pmx file and I have no idea how to convert it or if there's even a way to convert it. Blender with addons seems like everyone's go to answer but Google didn't give me a set of instructions. Totally corrupted my game! Thankfully I am backed up and backed up on back ups so I didn't lose a thing so there it is. Things I did right:
1. Backed up my cc, saves and essentially everything.
Sorry it took so long for me to try this and get back. Anyone who's looking for premade Yandere Simulator bullies, make place holders for now instead and hope people post the modded version soon!