You can customize how and if to display the sheet names in tabs at the bottom of the control. Since a spread may have more than one sheet, the tabs in a tab strip at the bottom of the control contain the sheet names and provide a way to navigate to different sheets. These are called sheet tabs. The default sheet names are Sheet1, Sheet2, etc. You can specify other names for the sheets and these appear in the sheet tabs.
You can set how wide the tab strip is, and therefore, how many sheet tabs are displayed. If the number of tabs exceeds the width of the tab strip, the control displays buttons. Click the buttons to display the next (or previous) sheet tabs.