Files with gro file extension might be found as old images from HP-49/48 calculators.

There are 4 other file types using
the GRO file extension!

empty icon.gro - Genbox Family History report options

empty icon.gro - Serious Sam game data

empty icon.gro - Warlords Battlecry game archive

empty icon.gro - Allegro MIDI music

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GRO file extension - HP-48/49 grob graphic image format

What is gro file? How to open gro files?

File type specification:

Bitmap image file type icon Bitmap image file type

gro file icon: gro filetype icon

The GRO file extension is also used for a special graphic format used on HP-49/48 calculators. Very old format.

Most likely some old format without support. No further information could be found.

This gro file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

The default software associated to open gro file:

XnView MP icon

Pierre-Emmanuel Gougelet logoXnView MP  Multiplatform software

Company or developer:
Pierre-Emmanuel Gougelet

A free (for non-commercial purposes) powerful cross-platform media browser, viewer and converter. Compatible with more than 500 formats and also supports export to 70 different file formats. It works on Windows, Linux and macOS (OS X).

Help how to open:

You might still be able to open this format with XnView.

How to convert:

Probably can be exported to other formats.

Find conversions from gro file:

gro to jpg

Related links:

HP calc software and information.

List of software applications associated to the .gro file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open gro file, edit gro file, convert gro file, view gro file, play gro file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting gro files.

gro file viewer - programs that view gro file - HP-48/49 grob graphic image format

Programs supporting the exension gro on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for view gro file action.

Microsoft Windows:


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