This specific 3D model, "sailing yacht 3D model 2", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 792 KB), OBJ (OBJ, filesize: 3.11 MB), BIP (KeyShot, filesize: 1.2 MB), FBX (Autodesk FBX, filesize: 2.62 MB), GLTF (glTF, filesize: 1.05 MB)