GC3 file extension is for Golden Common Lisp 3.1 Lisp language source code file
Similar to GC3
8M - Math 8 extended character set printer font PageMaker8MED - Amiga OctaMed Music file
8SVX - Amiga 8-bit Sound format
8U - Roman 8 extended character set printer font PageMaker
91 - 91x91 dpi display font Ventura Publisher
96 - 96x96 dpi display font Ventura Publisher
@@@ - Screen files used in installation or instructions
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