Formula tab
The Formula tab allows working easily with all functions.
                                             
                                        
Figure. Formula tab.
Using this tab, you can:
- 
                                                Insert functions using the Insert Function dialog window 
- 
                                                Quickly access Autosum formulas 
- 
                                                Access 10 recently used formulas 
- 
                                                Work with formulas classified into categories 
- 
                                                Work with named ranges 
- 
                                                Use the Calculation options: calculate the entire workbook, or the current worksheet only