How to GET and SET Values of Excel Dropdown using C#

Below is the code to fetch the value of dropdown in Excel sheet and to send the value to Excel sheet using C#.

using System;

using Excel = Microsoft.Office.Interop.Excel;

namespace Purush_Excel

{

    class Purush_Excel_Dropdown

    {

        static void Main(string[] args)

        {

            Excel.Application xlApp = new Excel.Application();

            Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(@"C:\Purush\Test.xlsx");

            Excel._Worksheet xlWorksheet = xlWorkbook.Sheets["Purush_Sheet1"];

            Excel.Range xlRange = xlWorksheet.UsedRange;     

            var DropDownCell = xlWorksheet.get_Range("S2", Type.Missing);

            var DropDownCellCurrentValue = DropDownCell.Value2;//GET Excel Dropdown Value

            DropDownCell.Value2="Company 1";//SET Excel Dropdown Value

            xlWorkbook.Save();

            xlWorkbook.Close();

         }

    }

}