If you are seeking information about file extensions, then you are in the right place at the right time.

Details of extension .grg

On this page, we're going to take a closer look at the .grg file extension, which is related to GreatFamily Graphic Gallery.

We'll explain what exactly a .grg file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .grg files into different formats, we'll give you some tips on how to do that too.

Let's see the file format associated with this file extension!


  1. GreatFamily Graphic Gallery

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GreatFamily Graphic Gallery

grg file - GreatFamily Graphic Gallery
The GRG file belongs to the Document category and works with GreatFamily, being used as a GreatFamily Graphic Gallery. GreatFamily is an easy-to-use tool for graphical family tree editing and web page creation. The developer no longer updates GreatFamily and does not provide support anymore. According to our data, GreatFamily uses one more file types.
Application: GreatFamily
Program name: -
Category: Document files
Mime-type: application/octet-stream
Related extensions:
.gd3 GreatFamily Genealogy Data

The .grg file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .grg extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .grg file extension wrong?

In our database, we came across the following similar extensions:

.ggr Gimp Gradient File
.rg Rosegarden Music
.grr Gradekeeper Class Roster
.brg ProjectWise User Settings
.vrg ViewRanger Map Data
.gtg GTViewer Graphics File

The .grg extension is frequently misused

People sometimes confuse the .grg filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

ggr (1), rg (1), grr (1), brg (1), vrg (1), gtg (1), trg (1), nrg (1), gg (1), gry (1)

Having trouble opening a .grg file?

If you want to open a .grg file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .grg association can trigger this error.

Windows can't open this file:

File: example.grg

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program with which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android