Does anyone know how to setup a random number generator from a pre-defined set of numbers? For example, I have a series of numbers across 10 columnsand down 2000 rows, and I want to select only a few of them and run a random number analysis with them. To be able to pick 3, 5, 7, or all ten numbers and run them to find all of the possible 3, 5, 7, or 10 digit number variations. Anyone know?