This specific 3D model, "Medieval House Free low-poly 3D model 6", is an asset made available by "Unknown author".
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STL (Stereolithography, filesize: 122 KB), OBJ (OBJ, filesize: 137 KB), GLTF (glTF, filesize: 186 KB), FBX (Autodesk FBX, filesize: 140 KB), TEXTURES (Textures, filesize: 42.4 MB)