To take Copilot 3D for a spin, browse to the Copilot 3D website and sign in with your Microsoft account. To get some inspiration, you can view the existing 3D models generated by other people.

eDrawings/Dassault provide the free eDrawingsViewer to enable viewing of 3D models (typically .sldasm/.sldprt, step/.stp or .iges) without requiring the expensive authoring apps such as SolidWorks ...