Extension	File Type Developer	File Category	File Type Description	Software	Software Developer
.FN3	Software Publishing Corporation (SPC)	Font Files	Harvard Graphics 3.0 Font File	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)
.MA3	Software Publishing Corporation (SPC)	Developer Files	Harvard Graphics Macro	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)
.PPL	Open Source	Developer Files	Free Pascal Dynamic Library	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)
.PR4	Software Publishing Corporation (SPC)	Data Files	Harvard Graphics Presentation	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)
.PRS	Software Publishing Corporation (SPC)	Data Files	Harvard Graphics Presentation	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)
.SH3	Software Publishing Corporation (SPC)	Data Files	Harvard Graphics 3.0 Presentation File	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)
.TP3	Software Publishing Corporation (SPC)	Page Layout Files	Harvard Graphics DOS Template File	Harvard Graphics Presentation Software	Software Publishing Corporation (SPC)

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