HDF5 "packedbits.h5" {
DATASET "/DS64BITS" {
   DATATYPE  H5T_STD_I64LE
   DATASPACE  SIMPLE { ( 8, 64 ) / ( 8, 64 ) }
   PACKED_BITS OFFSET=0 LENGTH=16
   DATA {
   (0,0): 65535, 65534, 65532, 65528, 65520, 65504, 65472, 65408, 65280,
   (0,9): 65024, 64512, 63488, 61440, 57344, 49152, 32768, 0, 0, 0, 0, 0, 0,
   (0,22): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (0,44): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (1,0): 65534, 65532, 65528, 65520, 65504, 65472, 65408, 65280, 65024,
   (1,9): 64512, 63488, 61440, 57344, 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0,
   (1,23): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (1,45): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (2,0): 65532, 65528, 65520, 65504, 65472, 65408, 65280, 65024, 64512,
   (2,9): 63488, 61440, 57344, 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (2,25): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (2,47): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (3,0): 65528, 65520, 65504, 65472, 65408, 65280, 65024, 64512, 63488,
   (3,9): 61440, 57344, 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (3,26): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (3,48): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (4,0): 65520, 65504, 65472, 65408, 65280, 65024, 64512, 63488, 61440,
   (4,9): 57344, 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (4,27): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (4,49): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (5,0): 65504, 65472, 65408, 65280, 65024, 64512, 63488, 61440, 57344,
   (5,9): 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (5,29): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (5,51): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (6,0): 65472, 65408, 65280, 65024, 64512, 63488, 61440, 57344, 49152,
   (6,9): 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (6,30): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (6,52): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (7,0): 65408, 65280, 65024, 64512, 63488, 61440, 57344, 49152, 32768, 0,
   (7,10): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (7,32): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (7,54): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
   }
   PACKED_BITS OFFSET=16 LENGTH=16
   DATA {
   (0,0): 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535,
   (0,9): 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65534,
   (0,18): 65532, 65528, 65520, 65504, 65472, 65408, 65280, 65024, 64512,
   (0,27): 63488, 61440, 57344, 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (0,42): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (1,0): 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535,
   (1,9): 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65534, 65532,
   (1,18): 65528, 65520, 65504, 65472, 65408, 65280, 65024, 64512, 63488,
   (1,27): 61440, 57344, 49152, 32768, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   (1,44): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,