RandyW: From my experience I know that I don't use much more than 5% and very unlikely to go over 10% because Excel has so many formulas etc. that it can utilize that I don't require on a week to week basis. Yet many people would consider my use of Excel to be in the intermediate level. in fact at one seminar I was told that I should be in the advance level. Averaging it out when there is as many beginning level users it would take a lot of advance level like yourself to bring the average up to even ten percent.