STL Import for Solid Edge is a Stereolithography (.stl) file import add-in for Solid Edge?. This plug-in gives Solid Edge the ability to import geometric data from ASCII and Binary STL files. STL Import for Solid Edge reads polygon mesh data stored in STL files and imports it into Solid Edge. STL Import for Solid Edge creates trimmed planar surfaces for each triangle/quad and knits them together to create a body.