How to Use Exponents on Excel. Exponents refer to a number raised to the power of another number. ... When used by itself, you need to add an "=" sign at the beginning. As an example, "=Power(10,2 ...

Input your first value in the desired cell; for example, input "3" into "D1." Double-click an empty cell adjacent to the first. For this example, use "D2" as the cell to place the result.