I have a set of data 12 columns wide and up to 2,000 rows.
I need to display the unique values of column 11, based on column 8.
I have already used in column 16
{=INDEX($H$233:$H$10055,MATCH(0,COUNTIF($P$233:P233,$H$233:$H$10055),0))}
to show me the unique values in column 8. Now, I need...