etc) Select the the first cell below the heading of the new column (C2 in this example) enter the following into the formula ...
The letter refers to the column and the number refers to the row. Data can be typed directly into a cell or into the formula bar. To the left of the formula bar you will find the name box.
For example, instead of adding several numbers ... make changes directly in the formula bar at the top of the screen, and press Enter to save your changes. You can also double-click the cell ...