To import and use STL files with ANSYS Simulation products, follow these steps:
Start ANSYS Workbench.
Open the Geometry toolbar and select "Import".
Choose "STL" as the file type.
Navigate to the location where the STL file is saved and select it.
Define the import options and click "OK".
In the Model Tree, right-click the imported geometry and select "Create Surface Body".
The imported STL file is now ready for use in ANSYS Simulation products.
Note: Some ANSYS products may require additional steps to convert the imported STL geometry into a simulation-ready format.