1. Download the IFC viewer
Go to website http://www.ifcbrowser.com/
Download (and install) the IFC Viewer:
2. Export an Advance Steel model to an IFC file
Choose from the Advance Steel toolbar "Import / Export" the "Export IFC".
3. View the IFC model in the IFC viewer
Choose "File" / "Open" and select the IFC file.
It is possible to rotate, zoom, ...