Where can I get the plugin to import and export GR2 models for 3ds max?

I’ve been reading and they say that to make and modify 3D models for the aoe3:DE the best tool is the 3ds max but I’m having trouble
I’ve been looking high and low for a plugin to be able to import the GR2 files to modify them with the 3D max but the only thing there is is an old script to export that only works with the 3ds max 8 and that doesn’t run well on Windows 11 anymore

Age of Empires III - 3D Model Workflow tutorial - ModDB

And the one that’s for importing isn’t compatible with newer versions of 3DS Max either.

Releases · kangcliff/Age-of-Empires-III (github.com)

I don’t know if anyone can guide me because I want to export some designs that I’ve made and that I’ve modified