using Excel = Microsoft.Office.Interop.Excel;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Excel = Microsoft.Office.Interop.Excel;

namespace ExcelExample
{
    class Program
    {
        static void Main(string[] args)
        {
            Excel.Application excelApp = new Excel.Application();  // Creates a new Excel Application
            excelApp.Visible = true;  // Makes Excel visible to the user.

            // The following line if uncommented adds a new workbook
            //Excel.Workbook newWorkbook = excelApp.Workbooks.Add();

            // The following code opens an existing workbook
            string workbookPath = "F://11.xlsx";  // Add your own path here

            Excel.Workbook excelWorkbook = null;

            try
            {
                excelWorkbook = excelApp.Workbooks.Open(workbookPath, 0,
                    false, 5, "", "", false, Excel.XlPlatform.xlWindows, "", true,
                    false, 0, true, false, false);
            }
            catch
            {
                //Create a new workbook if the existing workbook failed to open.
                excelWorkbook = excelApp.Workbooks.Add();
            }

            // The following gets the Worksheets collection
            Excel.Sheets excelSheets = excelWorkbook.Worksheets;

            // The following gets Sheet1 for editing
            string currentSheet = "Sheet1";
            Excel.Worksheet excelWorksheet = (Excel.Worksheet)excelSheets.get_Item(currentSheet);

            // The following gets cell A1 for editing
            Excel.Range excelCell = (Excel.Range)excelWorksheet.get_Range("A1", "B1");

            // The following sets cell A1's value to "Hi There"
            excelCell.Value2 = "Hi There";

            Excel.Worksheet excelWorksheet2 = (Excel.Worksheet)excelSheets.get_Item("Sheet2");
            Excel.Range excelCell2 = (Excel.Range)excelWorksheet2.get_Range("A1", Type.Missing);
            excelCell2.Value2 = "Hi Here";

            // Add hyperlinks to the cell A1
            //excelWorksheet.Hyperlinks.Add(excelCell,"http://www.baidu.com",Type.Missing,"baidu",Type.Missing);

            // Add hyperlinks from "sheet1 A1" to "sheet2 A1"
            excelWorksheet.Hyperlinks.Add(excelCell, "#Sheet2!A1", Type.Missing, Type.Missing, Type.Missing);

            // Close the excel workbook
            //excelWorkbook.Close(true,Type.Missing,Type.Missing);

            //Quit the excel app
            //excelApp.Quit();
        }
    }
}