Japanese Katana make with maya
only quad, not low poly.
the best model is in FBX, no conversion.
the other have problem.
you are free to do what you want with but not publish it for free in other places. modify texture or modify mesh is in your hand.
OBJ (OBJ, filesize: 15.9 MB), TEXTURES (Textures, filesize: 146 MB), FBX (Autodesk FBX, filesize: 150 MB), USDZ (USDZ, filesize: 4.07 MB), USD (USD, filesize: 4.07 MB), MA (Autodesk Maya, filesize: 955 MB)