Cycle Support (PLCS) Resources Application Protocol 224 implementation Introducing STEP PDM schema - a common subset extracted from AP 203 and AP 214 BRLCAD and STEP STEP File Analyzer and Viewer - generate a spreadsheet from a STEP file, also a viewer STEP programs STEP File Viewers Online Step File Viewer ISO 10303 STEP Standards – STEP Tools, Inc. STP viewer 2.3 - download 10303 CAD file formats Modeling languages