c# - C# の例外エラー

Question

Visual Studio 2010 プレミアムでいくつかのデータを Excel ファイルに書き込みたいのですが、コードを実行すると、次のエラーが発生します。

comexception was unhandled by user code 
Exception from HRESULT: 0x800A03EC

詳細ビューでの私のエラー:

System.Runtime.InteropServices.COMException was unhandled by user code
  Message=Exception from HRESULT: 0x800A03EC
  Source=Microsoft.Office.Interop.Excel
  ErrorCode=-2146827284
  StackTrace:
       at Microsoft.Office.Interop.Excel.Workbooks.Open(String Filename, Object UpdateLinks, Object ReadOnly, Object Format, Object Password, Object WriteResPassword, Object IgnoreReadOnlyRecommended, Object Origin, Object Delimiter, Object Editable, Object Notify, Object Converter, Object AddToMru, Object Local, Object CorruptLoad)
       at Cagri.Button1_Click(Object sender, EventArgs e) in c:\Users\Erdi\Documents\Visual Studio 2010\WebSites\DBE_Yazilim\Cagri.aspx.cs:line 117
       at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
       at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
       at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
       at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
       at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
       at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
  InnerException: 

私はMicrosoft Office 2013を使用しており、参照があります：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;
using Microsoft.Office.Interop.Excel;

最後に、次のコード部分でこのエラーを取得します。

workbook = excelObj.Workbooks.Open(HttpContext.Current.Server.MapPath("~/") + fileName, 0, false, Type.Missing, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", true, false, Type.Missing, true, 0, 0);

私の完全なコード:

 Microsoft.Office.Interop.Excel.Application excelObj = null;
 Microsoft.Office.Interop.Excel.Workbook workbook = null;

 excelObj = new Microsoft.Office.Interop.Excel.Application();

string fileName = "DBE_BAKIM_FORMU" + ".xlsx";

System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");

        workbook = excelObj.Workbooks.Open(HttpContext.Current.Server.MapPath("~/") + fileName, 0, false, Type.Missing, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", true, false, Type.Missing, true, 0, 0);
        Microsoft.Office.Interop.Excel.Sheets sheets = workbook.Worksheets;
        Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)sheets.get_Item(1);

        worksheet.Cells[6, 3] = c.TalepTarihi.ToString();
        worksheet.Cells[7, 3] = c.TalepTuru;
        worksheet.Cells[8, 3] = c.ModulAdi;
        worksheet.Cells[9, 3] = c.EkranRaporAdi;
        worksheet.Cells[10, 3] = c.VerilenSure; 
        worksheet.Cells[11, 4] = c.USER.UserName +" " +c.USER.UserSurname;
        worksheet.Cells[12, 4] = Convert.ToInt64(c.USER.UserTel);

        workbook.Save();

        excelObj.Workbooks.Close();
        excelObj.Application.Quit();

前もって感謝します..なぜ私はこのエラーを取るのですか? 助けてください..