Hi, my apologies as I will try to explain this the best way that I can. I'm trying to look up an ID number (in number form) across a range of cells in multiple columns, then pull the corresponding score (another number) located in the adjacent column, then find the average score. So for example, I'd like to pull all cells that contain the measure ID number #318, look to the adjacent column/cell that has the score (to the right of the ID#), then get the average of all those scores. I would like to do this for all measure ID numbers. This is a huge spreadsheet with about 31K rows and the data goes across multiple columns. I have 11 columns for measure ID# and 11 corresponding score columns. Thanks in advance for any help.