Every month my input column header for two of the columns change. For example: In Nov-2021, below would be my column headers:
Description | Period 11 Actual 2021 | Cumulative 11 Actual 2021 |
| x | 1000 | 5120 |
| y | 2000 | 6000 |
| z | 3000 | 5000 |
In Dec-2021, below would be my column headers:
Description | Period 12 Actual 2021 | Cumulative 12 Actual 2021 |
| x | 1000 | 6210 |
| y | 2000 | 8000 |
| z | 3000 | 8000 |
I want to rename 2nd and 3rd column headers as 'Actual Amount' and 'Cumulative Amount', respectively. How can I do this?