I recently used Subtotal as part of some data computations in a file of some 15,000 records. I know there is a way to accomplish this, but I haven't been able to figure out the solution: I want the subtotal rows to be a permanent, printable part of my spreadsheet and to be able to work with the subtotal figures (average the subtotals, for example). I have been able to copy just the subtotals and to work with them as a separate spreadsheet, but that's a work-around solution and isn't terribly satisfying or elegant. Ideas?