Generally speaking, it is to import and export each other through a file format that both software can read. The specific steps can be divided into the following two steps:

In SketchUp, the file option exports 3D graphics files in 3ds format, and selects local disk as the directory to save files in 3ds format.

Then open the 3DMAX software, select Import in the file options, import the 3ds file exported by SketchUp into the 3DMAX software, and then further adjust the material and animation of the model.