File Extension Library

.IGR File Extension

  • Developer by: NoteHeads
  • Category: Audio Files

What is an .IGR file?

.IGR file extension is created by NoteHeads. .IGR has been classified as Audio Files.

.IGR is Igor Engraver File

Musical notation file created by Igor Engraver, a program used for making musical charts; saves musicians, instruments, and the musical score itself; used for saving compositions; can be played back in the software.

IGR files can be used by both the Windows and Mac versions of Igor Engraver. However, when saving files on Mac, the file may not have an extension. Therefore, to use the file in Windows, add the ".igr" extension.

NOTE: The Mac version of Igor Engraver is only available for Mac OS Classic.

List of all softwares that can open the Igor Engraver File
NoteHeads Igor Engraver
NoteHeads Igor Engraver
File Type 2:

Quest3D Channel Group Layout File

Developer by: Act-3D Category: Settings Files Format: Binary

File created by Quest3D, a program that allows users to create 3D applications; contains the locations of "channels" within the Quest3D Channel Graph layout pane; used for storing the user-defined layout of a 3D scene.

IGR files are always saved with their corresponding .CGR files and have the same prefix filename. If IGR files are missing, the channels are displayed with a default layout and may be difficult to view.

Act-3D Quest3D is now discontinued.

How to Open .IGR file on different platforms

Open .IGR File on Windows

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

Open .IGR File on Mac

  • Right-click (or Ctrl + Left-click) the .IGR 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 .IGR File on Linux

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

Open .IGR File on iPhone

Select a file. If you don't see an application to open the .IGR 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 .IGR 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 .IGR files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .IGR files

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