Files with g1r extension are associated with Casio Model 980 calculator. They contained some sort of bitmap graphics.
G1R file extension - Casio Model 9860 image file
What is g1r file? How to open g1r files?
File type specification:
The g1r file extension is related to Casio Model 980, which was one of the fastest and most powerful graphic calculator of its time. A *.g1r file was some sort of bitmap image.
