title: Opening a pre-existing excel file
body: <p>I am trying to open a pre-existing excel file from a directory on my computer.  However, I am getting a COMexception when my code gets to the Workbooks.Open method.  I'm am unsure what I'm dong wrong.  Any help is appreciated.</p>
  
  <pre><code>using Microsoft.Office.Interop.Excel;
  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  using System.Windows.Forms;
  using Excel = Microsoft.Office.Interop.Excel;
  using System.Xml;
  
  namespace Excel_Create
  {
      class Program
      {
  
          static void Main(string[] args)
          {
  
  
              string mySheet = @"‪‪‪‪C:\Users\Danny\Documents\Visual Studio 2013\Projects\MWS\MWS\bin\Debug\csharp-Excel.xls";
                Excel.Application xlApp = new Excel.Application();
                xlApp.Visible = true;
  
  
                if (xlApp == null)
                {
                    MessageBox.Show("Excel is not properly installed!!");
                    return;
                }
  
  
  
           Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(mySheet,
            0, false, 5, "", "", false, Excel.XlPlatform.xlWindows, "",
            true, false, 0, true, false, false              );
  
          }
      }
  }
  </code></pre>
  
  <p>Here is what the exception says: An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in Excel_Create.exe</p>
  
  <p>Additional information: '‪‪‪‪C:\Users\Danny\Documents\Visual Studio 2013\Projects\MWS\MWS\bin\Debug\csharp-Excel.xls' could not be found. Check the spelling of the file name, and verify that the file location is correct.</p>