Don
From Help>Index "specifications"(no quotes)>Worksheet and Workbook
Specifications you will find that the number of worksheets in a workbook is
limited by your available memory.
The default number is 3. I believe the most you can set under
Tools>Options>General "sheets in new workbook" is 255.
Gord Dibben Excel MVP - XL97 SR2 & XL2002