Thank you both for your help! Both solutions work just fine!

-Dave


"Lori" wrote:

On a new sheet, try Data Consolidate, select the table reference
with the options "Sum" and labels in "Left Column" then click OK.

On 6 Jun, 08:45, Dave wrote:
Hi again!

I have a list which contains duplicates and values attached to every entry.
Like this:

col a col b
0 5
0 11
1 7
2 5
...

And I would like to make the list look like this:

col a col b
0 16
1 12
...

So, how to do this? Please I need your help!
-Dave