RG file extension is for 1bit B&W 4bit CMYK Raster Graphics format
Similar to RG
000 - Common filename extension GEOS000 - Compressed harddisk data DoubleSpace
001 - Fax Hayes JT FAX many
075 - 75x75 dpi display font Ventura Publisher
085 - 85x85 dpi display font Ventura Publisher
091 - 91x91 dpi display font Ventura Publisher
096 - 96x96 dpi display font Ventura Publisher
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