The model is named S_LapinPirate_Yeux, which should be eyes for a Pirate Rabbid.
So this a .mesh (format we named ourselves), and I think it doesn't contain anything about normals etc, probably only the mesh itself, but I'm not sure. Opening the mesh already is gonna be a good thing!
Here's the link to the file: https://ufile.io/3dqyo
Thanks everyone who tries to help!
Cya!
