Solid Edge CAD design software uses .par files to store CAD part designs. The program also support export to several exchange CAD/3D modeling formats, including IGES 3D exchange format (.igs, .iges). In case that you do not have access to the program, you have to use some 3rd party alternative or a dedicated CAD/3D model converter.
Open PAR file Open IGS fileA set of 3D modeling tools
A CAD converter with huge format support
A CAD visualizaton, analyzation and translating system