GRO File Type

- The quick facts

What are GRO files and how to open them

Are you having problems opening a GRO 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 GRO file?

GRO files have multiple uses, and Allegro MIDI Music is one of them.

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 3 different GRO openers which you will find listed below.

Last updated: July 13, 2020

More file formats using the GRO extension

Through our research of GRO files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • Genbox Family History Report Options

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.

Genbox Family HistoryGenbox Family HistoryUser submitted
Dragon UnPACKerDragon UnPACKerUser submitted
ZipZag ArchiverZipZag ArchiverUser 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 GRO file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.