Settings in Excel 2003
How to change the number of sheets for new workbooks
Excel automatically creates three worksheets in each new workbook, but you can force it to create as many
worksheets as you need.
Saving workbooks
Saving your document in the same location with the same name is easy.
Increase the number of Undo levels in Excel
If you're willing and able to edit the Registry on your computer, you can change Excel's number of
Undo levels.
Recalculating the worksheet
If you are working with huge workbooks that contain a very large number of formulas, functions, and data,
you can turn off the automatic recalculation.