Probably if you can explain what your data is like , what you wish to do , you can get a more practical , more useful answer. Ideal would be if you could upload a sample workbook.
Thank you both
I have uploaded part of the file and what I want to do is find the mode from column B where column A = 11 or find the mode from column B where column A =10. The result will be referenced by a cell in another sheet.