What is .IGR 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 Mac 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 Mac, add the ".igr" extension.
NOTE: The Mac version of Igor Engraver is only available for Mac OS Classic.
Recommended Software Programs to open .IGR file