'Declaration Public ReadOnly Property Worksheets As WorksheetCollection
public WorksheetCollection Worksheets {get;}
Use WindowOptions.SelectedWorksheet to set the selected worksheet. The selected worksheet is the worksheet seen when the workbook is opened in Microsoft Excel.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2