loop_
    _cell_measurement_refln.index_h
    _cell_measurement_refln.index_k
    _cell_measurement_refln.index_l
    _cell_measurement_refln.theta
       -2    4    1          8.67
        0    3    2          9.45
        3    0    2          9.46
       -3    4    1          8.93
       -2    1   -2          7.53
       10    0    0         23.77
        0   10    0         23.78
       -5    4    1         11.14
      # - - - - data truncated for brevity - - - -