When you compile data in a list, you often need to answer questions such as “How much revenue did the West Coast office generate last month?” or “What was the average number of customers served at ...

Using Excel 2010. I've got one sheet in particular that I'm working with that's got >6400 rows. Column A contains 1,522 unique dates, which range from 4/12/2000 to 10/19/2012 (not inclusive of all ...