| One of the most powerful features of Excel are formulas.
These allow you to change a value and let Excel automatically recalculate all the numbers. Formulas start with an "=" sign and reference cells like A1, A2, B3, AB7 and use them in a calculation. B2: =A2+1 The above if entered in cell B2 adds 1 to the value in A2 Formulas can also use functions and that's where the real power comes from. For example B2: =SUM(A1:A7) will add all the numbers in cells A1, A2, A3, A4, A5, A6, A7 See also: |