A g2r file extension is related to the data format used by Casio graphing calculators.
Software that open g2r file
G2R file extension - CASIO calculator memory data
What is g2r file? How to open g2r files?
File type specification:
The g2r file extension is associated with some graphing calculators developed by Japanese company called Casio.
The g2r file contains some kind of data used by Casio Calculators. Probably obsolete format.
This g2r 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.
The default software associated to open g2r file:
Program Link Software (FA-124) 
Company or developer:
Casio
Software that saves the program, data and the backup data on your PC by connecting the PC to the calculators through a USB cable.
List of software applications associated to the .g2r file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open g2r file, edit g2r file, convert g2r file, view g2r file, play g2r file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting g2r files.
Software that open g2r file - CASIO calculator memory data
Programs supporting the exension g2r on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Program Link Software (FA-124) for open g2r file action.
