NC Import for SolidWorks is an add-in for SolidWorks. This add-in gives SolidWorks the ability to convert tool movements in NC commands to corresponding lines and arcs in a SolidWorks 3D sketch.NC Import for SolidWorks is very easy to use as it adds a new file type to the SolidWorks File Open dialog box. To import a NC file select Open from the File menu. Select "Numeric Control Files (*.nc)" from the "File of type" combo box and select a NC file to import. A new part document will be created containing the imported NC file.