The archive contains a 3ds max 2021 scene for Corona + fbx files.

The renderers for the previews are made in Corona Render 11. On the Corona Legacy Mtl model.
A Corona Render version of at least 1.5 is required.

"For Corona Render։, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.

If you work in a V-Ray version lower than 3.1, be careful. In the materials in the BRDF section, there is a Microfaset GTR( GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward, whichever is preferable for you."