IGS Viewer – ABViewer 11
Professional 3D IGS Viewer to import and read *.igs file format. 3D IGS Viewer can print and convert IGES to DWG and other formats.
IGS Viewer allows converting IGS to DWG, IGS to STL, IGS to OBJ and to other file formats.
IGES - The Initial Graphics Exchange Specification defines a neutral data format that allows the digital exchange of information among Computer-aided design (CAD) systems.