Excel 2007 : adding values with unique identifiers

Hi guys,

I'm trying to do the following. I can't seem to describe it in plain English, that's why I can't find a solution with Google. So here goes:

Suppose you have the following data:
1 105,45
1 34,23
1 123,40
1 90,50
1 234,04
1 12,40
2 123,00
3 87,45
3 9,65
3 32,60
4 7,40
4 0,65
5 65,24
6 456,43
7 234,06
8 24,68
8 65,23
8 12,40

I want to add the values of the second column together for each unique identifier, so the result would be:
1 600,02
2 123,00
3 129,70
4 8,05
5 65,24
6 456,43
7 234,06
8 102,31

Any ideas how I can do this for large data sets?

EDIT: for clarity, first numbers of each row are in one column, the rest of the numbers in each row in the second column.

Hi and welcome to the forum.

You can do this using SUMIF

Column A= your numbers(1,2,3,4,5....)

Column B= Your values.

Then in C1, try this.

=SUMIF($A$1:$A$10;1;$B$1:$B$10)

If does not work, change the semicolon with gomma, in the formula.

Hope to helps you.

You can quickly create a Pivot Table to get the unique values and sum all at once,

While in your table, go to Insert|Pivot Table, enter a location to put your table, or if in another sheet, just click ok.

Then drag the unique identifier header from top of pane to the Row Label area, and the other column header to the Summation data area.

Pivot Table Tutorial: http://www.contextures.com/CreatePivotTable.html