This specific 3D model, "Victorian Mansion model pack Low-poly 3D model purchase", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 319 MB), OBJ (OBJ, filesize: 319 MB), OTHER (Other, filesize: 10.2 MB), PNG (PNG, filesize: 326 MB), ABC (Alembic, filesize: 319 MB), FBX (Autodesk FBX, filesize: 325 MB), GLTF (glTF, filesize: 326 MB), BLEND (Blender, filesize: 319 MB), MA (Autodesk Maya, filesize: 319 MB), MAX (Autodesk 3ds Max, filesize: 319 MB), C4D (Cinema 4D, filesize: 319 MB), UNITYPACKAGE (Unity 3D, filesize: 319 MB), TBSCENE (Marmoset Toolbag, filesize: 319 MB), TEXTURES (Textures, filesize: 96.8 MB)