PSM

PSM (Soild Edge Sheet) is one of the data file types saved/loaded by Solid Edge 3D CAD modeling software, from Siemens, used in industrial design, in this case for sheet metal designs.

Other Solid Edge Formats

 * ASM - Solid Edge Assembly
 * DFT - Solid Edge Drawing/Draft
 * DTF - Solid Edge Document
 * PAR - Solid Edge Part
 * Solid Edge XML design (.cmp_xml)

Links

 * Official site
 * Solid Edge free viewer (registration form required)