Topcon GFF

ORIGIN: bottom left
0JFFB\0 1 0 0 Topcon Geoids\0XXX\0 1
       1 1 1                         4
vData\0 1 1 siz +data
       4 4 4    4*  
vDatum\0 1 5 0 WGS84\0
vExtraFields\0 1 2 4 0
vNX\0 1 2 4 ncol 
      4 4 4 4   
vNY\0 1 2 4 nrow 
vRegGeoidMath\0 1 5 0 GRID2x2SW\0
vRegion\0 6 4 8