File Extension Library

.GRO File Extension

  • Developer by: Hewlett-Packard
  • Category: Raster Image Files

What is an .GRO file?

.GRO file extension is created by Hewlett-Packard. .GRO has been classified as Raster Image Files.

.GRO is Graphic Object Bitmap

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.

List of all softwares that can open the Graphic Object Bitmap
Newera Graphics Converter Pro
File Type 2:

Allegro MIDI File

Category: Audio Files Format: Text

ASCII text file that defines audio in a MIDI representation; also contains "note tracks," which specify display data for the audio; can be imported (and subsequently converted to other audio formats) using Audacity's File → Import MIDI... option.

List of all softwares that can open the Allegro MIDI File

How to Open .GRO file on different platforms

Open .GRO File on Windows

  • Right-click a .GRO
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .GRO file and Select check box "Always use this app to open .GRO files" Press "Ok"

Open .GRO File on Mac

  • Right-click (or Ctrl + Left-click) the .GRO file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .GRO File on Linux

Right click on the .GRO file, choose "Open with" and select a program from the list above

Open .GRO File on iPhone

Select a file. If you don't see an application to open the .GRO file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .GRO File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .GRO files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .GRO files

  1. You need to update the application that you normally use to open .GRO files. Only the latest version of the software supports the current .GRO file format
  2. You need to check the .GRO file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)