update caption of excelsheet's Slicers using c# for spire.xls

It is not working, there is no any such option available. Even I have verified that Spire.xls are included by command "using Spire.Xls;" 

To update the captions of an Excel sheet's Slicers using C# with Spire.XLS, you can achieve this by accessing the SlicerCache object associated with the Slicer and then updating its Caption property. 

using Spire.Xls;

class Program
{
    static void Main()
    {
        Workbook workbook = new Workbook();
        workbook.LoadFromFile("YourExcelFile.xlsx");

        Worksheet sheet = workbook.Worksheets[0];
        SlicersCollection slicers = sheet.Slicers;

        foreach (Slicer slicer in slicers)
        {
            slicer.SlicerCache.Caption = "New Caption";
        }

        workbook.SaveToFile("YourUpdatedExcelFile.xlsx", ExcelVersion.Version2013);
    }
}