GRO File

What are GRO files and how to open them

Are you having problems opening a GRO file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your GRO files.

What is a GRO file?

GRO files have multiple uses, and Allegro MIDI Music is one of them. Read more about the other uses further down the page.

Allegro MIDI Music

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 GRO files

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

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

Last updated: July 13, 2020

All known file formats using extension .GRO

While Allegro MIDI Music is a popular type of GRO-file, we know of 2 different uses of the .GRO file extension. Different software may use files with the same extension for different types of data.

Genbox Family History Report Options

We know that one GRO format is Genbox Family History Report Options. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

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

Help us help others

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