There's a lot going on in these formulaic conditional rules in Microsoft Excel that highlight the smallest and largest values within a period of years.

Excel’s BYCOL() and BYROW() functions evaluate data across columns and rows, returning an array result set allowing you to bypass a lot of work.

I hope you find this helpful. Also Read: How to use MIN, Max, and AVERAGE Functions of Excel. How do you calculate a weighted average on 100%?