'Declaration Public ReadOnly Property SaveHiddenRowsAndColumns As Boolean
public bool SaveHiddenRowsAndColumns {get;}
If the value is False, the return value of GetHiddenColumns and GetHiddenRows will always be null, regardless of the worksheet specified.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, 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