I want to sum the elements of one column under the two conditions.
The first and the second column contain different informations.
If the info is found in the the first column and if the other info
is found in the second column, then we add the elements located in
the third column, else, we continuous at the next line.
I've tried the formulas "sumif" but it does make only with one
condition.
Has anyone found the solution?