If using large quantities of data one can become confused with the numbers differentiation. Also, classification of these numbers can help additional formatting (formatting one row of cells to be in the $0.00 format instead of a plain number, or one row of very long numbers being put into scientific notation rather than having them remain their original length.)
The representation of 100.0 in the floating-point representation is computed as follows: First convert the given number 100.0 in the binary form. 10010 = 11001002 the binary representation.