GR*

File Format
Name	GR*
Ontology	Electronic File Formats Graphics GR*
Extension(s)	.gr7 .gr8 .gr9 .g9s .sfd .gr9p .g10 .g11

GR* is a set of similar graphics formats for the Atari computers with unknown origin.

Identification

.gr8 and .gr9 files appear to be 7680, 7682 or 7684 bytes long.

.g10 files appear to be 7689 bytes long.

Software

• RECOIL

Sample files

• https://telparia.com/fileFormatSamples/image/grStar/