Let's say I have an Excel spreadsheet with a column full of different numbers. So each cell has a different random number in it. The numbers represent a file size in kilobytes. Let's also say there are a few hundred cells in this column all with different values. Is there a way to easily put groupings of these cells together through a formula or something so that they add up to no more than 3 gigs but not much less than that, either? So if I have 100 cells, all with different values, what I want to do is run some command that will tell me that "these cells" added together would come out to no more than 3 gigs. I hope that makes sense.