How to open GRO files

Did your computer fail to open a GRO file? We explain what GRO files are and recommend software that we know can open or convert your files.

What is a GRO file?

We know of 2 different uses of the GRO file type, one of them being Allegro MIDI music. Read the details below.

The GRO file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a GRO opener may not be able to open all kinds of GRO files. In this case, look through both formats to make sure you find the best suited GRO viewer.

Allegro MIDI music

Through our analysis of GRO files, we know that one use of the format is Allegro MIDI music. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

Genbox Family History report options

Through our analysis of GRO files, we know that one use of the format is Genbox Family History report options. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

GRO file openers, viewers, etc.

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
We have not verified any programs that we know for certain can work with GRO-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with GRO-files. If you know one, please use the Suggest link below and tell us about it!