By default, a new Excel workbook contains a single worksheet named Sheet1. If you like, you can add more worksheets to your workbook. For example, you might want a worksheet for every month of the year, for specific products or projects, and so forth.
Click the plus sign (+) to the right of the Sheet1 tab.
Excel inserts a new sheet, named Sheet2.
Tip
Optional Way to Insert New Worksheets You can also insert a new worksheet by clicking the down arrow to the right of the Insert button on the Home tab and selecting Insert Sheet from the menu.