Article continues below this ad. ... If the column is already in alphabetical or numerical order, you don't need the numbers column. Select the data and choose "Z-A" from the "Order" drop-down menu.

In other words, you want to take a column of consecutive numbers or words, say, from 1 to 5 or Able, Baker, Charlie, and flip the order—running from 5 to 1 or alphabetizing the words in reverse order.