I have a 50MB workbook with lots of calculation across sheets. There are times when I need to enter data quickly while still keeping calculation enabled on the sheet where the data is being entered. Problem is, I then have to wait for the rest of the workbook to calculate. I would like to find a way to temporarily disable calculation on the other sheets while continuing to benefit from calculation on the data-entry sheet only. Then, once the data is entered, I would like to re-enable calculation across the entire workbook. I've looked hard for a way to do this, to no avail. Ideas???