| Step 1. |
Choose Tools tab→Variables group→Variables |
| Step 2. |
In the Variable Table, click a cell that contains a formula that has a function. |
| Step 3. |
Select a function that you want to replace. |
| Step 4. |
Click the Function Wizard button. The Function Wizard dialog box displays the function you selected. |
| Step 5. |
Type a new function to replace the existing function. |
| Step 6. |
Click Next. |
| Step 7. |
Click the Finish button to replace the function in the formula. |