Example tiled grid information for 32x32 CS as generated by convertMITgrid.m
Files are of size 32+1 x 32+1 x 16 records x 8 bytes.
Records are

  XC
  YC
  DXF
  DYF
  RAC
  XG
  YG
  DXV
  DYU
  RAZ
  DXC
  DYC
  RAW
  RAS
  DXG
  DYG