You can calculate numerical values directly in your spreadsheet.
Procedure
Open a spreadsheet.
Click the row where you want to add a value.
Enter the relevant value.
Select an empty cell and enter the relevant formula in the row, for example, =SUM(A1;B1).
Press Enter.
The result of the calculation is displayed in the cell.
You can also calculate with attribute values of ARIS objects in this way.
Example
Calculate the sum of two cells containing the values 100 and 50.