You cannot officially download or export raw 3D mesh files (like .OBJ or .FBX) directly from . While the platform provides high-fidelity 3D terrain and building data, Google’s licensing strictly prohibits the redistribution or commercial use of these models.

However, there are several technical workarounds—ranging from official file saving to advanced third-party extraction—that users employ for personal or educational projects. 1. The Official Method: Saving .KMZ Files

While this doesn't export a standard 3D model file for Blender or CAD, it is the only supported way to save 3D data within the Google ecosystem.