This is a model design with rhino. You may want to remesh it because it's not a low-poly model.
STL (Stereolithography, filesize: 19.3 MB), OBJ (OBJ, filesize: 41.5 MB), FBX (Autodesk FBX, filesize: 10.4 MB), USD (USD, filesize: 3.82 MB), MA (Autodesk Maya, filesize: 23.8 MB), 3DM (Rhinoceros 3D, filesize: 9.09 MB)