The active sheet is the sheet that currently receives any user interaction. You can specify the active sheet programmatically. Use the ActiveSheetView property of the FpSpread object.
Usually, the active sheet is displayed on top of the other sheets in the component.
For information about adding a sheet, refer to Adding a Sheet.
For information on working with multiple sheets, refer to Working with Multiple Sheets.
Return to the sheet appearance overview at Customizing the Appearance of the Sheet.