toSheet.getWorkbook().getDrawingGroup() == null) toSheet.getWorkbook().createDrawingGroup();
toSheet.getWorkbook().getDrawingGroup() == null) toSheet.getWorkbook().createDrawingGroup();
toSheet.getWorkbook().getDrawingGroup() == null) toSheet.getWorkbook().createDrawingGroup();
toSheet.getWorkbook().getDrawingGroup() == null) toSheet.getWorkbook().createDrawingGroup();