In what data formats does Google accept 3D models?

Google supports 3D models with and without textures, and extruded 2.5D building footprints without textures. The supported formats are:

• 3D textured - .skp, .kmz (.kml + .dae)
• 3D non-textured - .shp, .skp, .kmz (.kml + .dae)
• 2.5D non-textured - .shp, .csv, .kmz (.kml + .dae)

Note: Non-georeferenced data formats such as .3ds and .max must be accompanied by geo-referencing materials such as .kmz placemarks or UTM coordinates.