Gradekeeper document
File type: Document file
Files with grk file extension can be found as documents from Gradekepeer gradebook software.
Found 2 different file type records with the same grk filename suffix.
File type category:
Document file
Date updated: September 3, 2018
Record marked as obsolete and not updated for a long time.
The grk file extension is mainly related to documents created using Gradekeeper, a powerful gradebook software for both students and educators.
The grk file is a document saved in the program.
You can open and work with these documents using Gradekeeper.
Export to PDF is likely, but the GradeKeeper may also offer other formats for saving.
Software applications that can open grk files:
Microsoft Windows
Software applications that can edit grk files:
Microsoft Windows
Software capable of saving grk files:
Microsoft Windows
Software apps that create grk files:
Microsoft Windows
Software apps that print grk files:
Microsoft Windows
File type category:
Bitmap image file
Date updated: October 2, 2026
The GRK file extension was used for one of the default scanned document file formats associated with Kreon scanners. The format stores scanned image data and is now old and rarely encountered.
Rapidform Explorer, also known as Geomagic Verify Viewer, provides viewing support for Kreon scanner files on Microsoft Windows. The format is primarily of interest when accessing older scan files created by Kreon hardware.
Open the .grk file with Rapidform Explorer, also known as Geomagic Verify Viewer, on Microsoft Windows.
Because this is an uncommon older format, general-purpose image viewers may not recognize it.
Programs for viewing grk files:
Microsoft Windows
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