.. autoclass:: pylightxl.pylightxl.Database :members:
.. autoclass:: pylightxl.pylightxl.Worksheet :members:
.. autofunction:: pylightxl.pylightxl.utility_address2index
.. autofunction:: pylightxl.pylightxl.utility_index2address
.. autofunction:: pylightxl.pylightxl.utility_columnletter2num
.. autofunction:: pylightxl.pylightxl.utility_num2columnletters