The program can be used in command line form, as in:
ivcon input.iv output.stlor can be used in an interactive mode, in which input and output files can be read or converted in any order.
Graphics file formats are poorly documented; hence this program was written primarily by examining typical files and struggling to interpret them. Particularly in the case of Inventor and DXF files, the program is not able to handle all the subtleties of the file format, and may mangle data, or even crash.