S, file format> (CGM) A Standard file format for Storage and communication of graphical information, widely uSed on perSonal computerS and accepted by {deSktop publiShing} and technical illuStration SyStemS. MIME type: image/cgm. ANSI/ISO 8632-1987. Worked on by the ISO/IEC group JTC1/SC24. CGM Open ConSortium . See alSo: WebCGM. (1999-02-16)