Aspose.CAD allows developers to open, read and process AutoCAD DWG, DXF, DWT and other CAD and BIM file formats, such as: DGN, DWF, DWFX, IFC, STL, IGES, PLT, CF2, OBJ, HPGL, IGS, DXB, STP, DAE, U3D, 3DS, CGM... It is a native API and does not require AutoCAD...operation has cancellation support and ready for multi-threaded...