Files with g1l file extension could in the past be found in Casio 9860 graphic calculators.
G1L file extension - Casio model 9860 data
What is g1l file? How to open g1l files?
File type specification:
The g1l file extension was used for some sort of data format found in old Casio 9860 graphic calculator. Probably some kind of system file. No further information could be found.
This g1l file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.