GR File

What are GR files and how to open them

Are you having problems opening a GR file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a GR file?

A .GR file is a Graphmatica Graph file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open GR files

Important: Different programs may use files with the GR file extension for different purposes, so unless you are sure which format your GR file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 3 different GR openers which you will find listed below.

Last updated: February 24, 2013

Various apps that use files with this extension

These apps are known to open certain types of GR files. Remember, different programs may use GR files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Graphmatica for Win32Graphmatica for Win32User submitted
GraphmaticaGraphmaticaUser submitted
Gui PlopGui PlopUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about GR file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.