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This format is used for exchanging graphics data between SAPR programs. It was initially created for AutoCAD in 1982. It contains information regarding vector graphics in binary or ASCII. It’s used as an open alternative to the closed DWG format.

Is an e-book format developed for the Psion Series 3 platform used in the 1990s. It contains text and its formatting parameters. This e-book format was used exclusively in Psion devices.