• Importing Mesh Files: Use the AMIMPORTMESHLT command to import your mesh files. Automesher LT supports many 3D file extensions, including STL (Stereolithography), OFF (Object File Format), OBJ (Alias Wavefront Object), and others.
• Changing Mesh Entity Type: The AMCONVERTMESHLT command allows you to change a mesh entity type. This can be particularly useful when converting 3D drawing entities like faces or polygon mesh into Polyface or subdivision mesh.
• Exporting 3D Drawing Entities: With the AMEXPORTMESHLT command, you can export your 3D drawing entities to an external file format. This includes 3DS (3D Studio), including STL (Stereolithography), PLY (Stanford Polygon Format), and others. 

Please follow the step-by-step instructions below to start using Automesher LT in your AutoCAD:

1. Execute the AMIMPORTMESHLT command and navigate to the "/AutomesherLT.bundle/Contents/Examples/" folder.
2. Select rock.obj file and in the mesh reconstruction dialog select SubD mesh entity type, and then press enter.
3. You should see a new object in your drawing with a textured material.
4. Execute the AMCONVERTMESHLT command to convert your imported mesh into the PolyfaceMesh entity type.
5. As expected the texture data are not available for the legacy polyface meshes.
6. Execute the AMEXPORTMESHLT command to export your polyface mesh to another file format, e.g. 3DS. 

The installer that ran when you downloaded this app/plug-in from the Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.