What is .GRO file extension?
.GRO file extension is a known file type. This section tells you everything you need to know about this extension.
Bitmap image format sometimes referred to as a GROB (GRaphic Object Bitmap); used by Hewlett-Packard scientific calculators, such as the HP-48 and HP-49; used for storing graphs, charts, and other graphics created on the calculator.
GRO files may be viewed on a computer using a supporting HP calculator emulator, such as Emu48.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.