Hi, I have a weekly online poker game that has about 30 participants. I have a spreadsheet that tracks buy ins, rebuys, amount won, total profit or loss. I have drop down boxes and formulas in a number of the cells. The sheet changes each week depending on who actually plays that week. I want to keep track of the totals from each week as a running total for each player. Do I have to have a separate sheet for each week, or can i erase the data weekly on the sheet while still keeping a running total somehow?