Click office button. Then click the Excel Option.
![Click the Data tab. Then click the Solver button.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Add_Solver___Option.PNG)
Click the Add-in and click the solver in the list.
![Select the target cell.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Add_Solver___SolverList.PNG)
Click GO
![Click an Equal To option, and then, if necessary, enter a value.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Add_Solver___GO.PNG)
Select Solver add-in in the list. Click OK.
![Select the cell range the solver uses to compare against the target cell.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Add_Solver___Dialog.PNG)
Click OK to install Solver. Solver button is added to Data tab.
![Then click OK.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Add_Solver___DataTab.PNG)
10.4.Solver |
| 10.4.1. | Add/Install Solver Add-in | ![Add/Install Solver Add-in](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Add_Solver___Option.PNG) |
| 10.4.2. | Use Solver | ![Use Solver](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Solver___Click_Data_Tab_Then_Click_Solver_Bu.PNG) |