Say I have 3 columns..

344 2 10
344 4 20
344 5 25
555 1 2
555 1 2
555 2 4
555 5 6
666 6 60
666 4 40
And I want to perform a function that would leave me with the total when the items in the 1st column match...

IE:
344 11 45
555 9 14
666 10 100
How could I do that?
Something like "If col A1 = A2 then sum it and check if A2 = A3..." is what Im thinking
Note: I have 1300 Rows....