.GRR File Extension
Gradekeeper Class Roster File
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What is a GRR file?
Roster or list of students in a class created with Gradekeeper, a classroom attendance and grade tracking program; referenced by Gradekeeper when taking attendance and saving scores.
The Gradekeeper gradebook is saved as a .GRK file.
Programs that open or reference GRR files
Gradekeeper for Windows
Gradekeeper for Mac OS X