The magical part of a spreadsheet is that when you make a change to one number in the spreadsheet, you can see instantly how it affects the other number(s) on the sheet. In a sense, you can simulate the outcome of a math equation, your money, or anything else that deals with numbers before you actually do it in rl. It is an amazing application.
2) Fat Chick - an excel (XL) sheet; a fat girl who has to wear oversize clothes
3) Whore, Skank, Slut - a girl who will fuck anyone
Shut up spread sheet.