How to change the number of sheets for new workbooks
Excel
2010
Excel automatically creates three worksheets in each new workbook, but you can force it to create as many
worksheets as you need.
For example, if you prefer to start each new workbook with a single worksheet. After all, it's easy enough to add new sheets if and when they are needed.
To change the default number of worksheets, do the following:
1. On the File tab, click the Options button:
2. On the General tab, in the When creating new workbooks group, change the value for the Include this many sheets:
3. Click OK.
Note: Making this change will affect all new workbooks but will have no effect on existing workbooks.