LARGE(...)

Category: Statistical

Returns the k-th largest value in a data set

LARGE(array, k)

Category: Lookup and reference

Returns the row number of a reference

ROW([reference])

0

The formula takes two argument, one is the data, the second is the kth largest value you want to find. When used for sorting, we use ROW(row_num) to get the values sorted from highest to lowest value.