Features:
| Source Format | Best Free Converter | Best Paid Converter | | :--- | :--- | :--- | | .blend (Blender) | Blender itself (File → Export → 3DS) | Okino PolyTrans | | .obj / .fbx | Autodesk FBX Converter (free) | 3D Object Converter | | .skp (SketchUp) | SketchUp Free (web) + Export | SimLab 3DS Exporter | | .stl (Mesh) | MeshLab (free, open-source) | AccuTrans 3D | 7z to 3ds converter repack
You likely do not need a converter. A .7z file is a container, not a 3D format. Use 7-Zip or WinZip to extract the contents to access the .3ds file directly. Features: | Source Format | Best Free Converter