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Format for bitmap images that were created in the Seattle FilmWorks video editor, which is no longer being actively developed. It was also used to create slideshows. The format has a MGI PhotoSuite file structure that supports bitmap images. SFW files can be converted into JPG images.

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.