If you use Autodesk 3ds Max to for modelling, copy the 3ds max plug ins into into your 3ds max plugins directory.

1. The Autodesk 3ds Max plug ins can be found in [root]/Tools/3ds Max Plugins/.
2. Each dle file is for one supported version of Autodesk 3ds Max (2018 - 2024).
3. Copy the matching dle file into your [3ds max]/plugins/ directory of Autodesk 3ds Max.
4. You may need to restart Autodesk 3ds Max. Go to Export and check that the Shape Data (*.exportdesc) and Shape Drawing (*.draw) extensions are shown.

The Shape.ExportDesc files contain information for the importer in Train Simulator NEXT how the materials are designed, for example. You should always export this file with your model to make the import progress comfortable and easy.

The Draw files contain outline information for path geometry alike ballast and tracks. A documentation for this feature will follow.