Create Pivot Chart in Excel in C#

using Spire.Xls;
using Spire.Xls.Core;

namespace CreatePivotChart
{
    class Program
    {
        static void Main(string[] args)
        {
            //load the Excel file
            Workbook workbook = new Workbook();
            workbook.LoadFromFile("Input.xlsx");

            //get the first worksheet
            Worksheet sheet = workbook.Worksheets[0];
            //get the first pivot table in the worksheet
            IPivotTable pivotTable = sheet.PivotTables[0];

            //create a clustered column chart based on the pivot table
            Chart chart = sheet.Charts.Add(ExcelChartType.ColumnClustered, pivotTable);
            //set chart position
            chart.TopRow = 19;
            chart.BottomRow = 38;
            //set chart title
            chart.ChartTitle = "Pivot Chart";

            //save the resultant file 
            workbook.SaveToFile("CreatPivotChart.xlsx", ExcelVersion.Version2013);
        }
    }
}