Nokia Group Graphic
From Just Solve the File Format Problem
				
								
				
				
																
				
				
								
				Nokia Group Graphic (or Nokia Group Graphics, Nokia Phone Group Graphics, NGG) is a bi-level raster image format used by some Nokia phones. It is identical to Nokia Operator Logo, except that it has a somewhat different header format.
Contents | 
Format
Files have a 16-byte header, followed by pixel data in ASCII text format.
Identification
Files begin with the ASCII string "NGG".
Software
- Konvertor
 - XnView
 - Ringtone Tools
 -  Netpbm: pbmtonokia, with "
-fmt NGG" option (write-only)