Go to the Plug-ins menu in the top toolbar of Abaqus/CAE. Look for "Mesh to Geometry" or "STL Import." Quick Tips for Success
To bridge this gap, engineers use specialized "Mesh to Geometry" plugins. Here is everything you need to know about finding, downloading, and using these tools. Why You Need a Mesh-to-Geometry Plugin
A plugin converts these mesh facets into analytical surfaces (NURBS), giving you back full control over the model. Top Plugins for Abaqus Mesh Conversion 1. 3D Mesh to Geometry (Official Abaqus Plug-in)

