data_title

_cell_length_a                   19.678(3)
_foo_bar baz
_hello 12.3

loop_
 _my_atom_type_symbol
 _my_atom_type_description
 _my_atom_type_scat_dispersion_real
 'C'  'C'   0.0033
 'Al'  'Al'   0.0034