Generate Excel file using C#

using Excel = Microsoft.Office.Interop.Excel;

protected void ExportToExcell(object sender, EventArgs e)

{           

            string data = null;

            int i = 0;

            int j = 0;

            Excel.Application xlApp;

            Excel.Workbook xlWorkBook;

            Excel.Worksheet xlWorkSheet;

            object misValue = System.Reflection.Missing.Value;

            xlApp = new Excel.Application();

            xlWorkBook = xlApp.Workbooks.Add(misValue);

            xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);

           

            for (i = 0; i <= 10; i++)

            {

                for (j = 0; j <= 5; j++)

                {

                    data = "Ajay " + i.ToString();

                    xlWorkSheet.Cells[i + 1, j + 1] = data;

                    xlWorkSheet.Cells[1, j + 1].Font.Bold = true;

                    xlWorkSheet.Cells[1, j + 1].Interior.ColorIndex = 10;

                }

            }

            xlWorkBook.SaveAs(Server.MapPath("~/Docs/") + "csharp.net-informations.xls",

           Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, 

           Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);

            xlWorkBook.Close(true, misValue, misValue);

            xlApp.Quit();

            releaseObject(xlWorkSheet);

            releaseObject(xlWorkBook);

            releaseObject(xlApp);

  

}

private void releaseObject(object obj)

{

            try

            {

                System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);

                obj = null;

            }

            catch (Exception ex)

            {

                obj = null;       

            }

            finally

            {

                GC.Collect();

            }           

}