title: Excel not Visible
body: <p>I am opening an existing Excel file with following process:</p>
  
  <pre><code>Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
  
  excel.Visible = true;
  Workbook w = excel.Workbooks.Open(@"E:\ishu\Test.xlsx"
                                   , Type.Missing,
                                   true, Type.Missing, Type.Missing,
                                   Type.Missing, Type.Missing, Type.Missing,
                                   Type.Missing, Type.Missing, Type.Missing,
                                   Type.Missing, Type.Missing, Type.Missing,
                                   Type.Missing);
  
  Worksheet ws = (Worksheet)w.Worksheets[1];
  
  Microsoft.Office.Interop.Excel.Range xlRange = ws.UsedRange;
  excel.Visible = true;
  </code></pre>
  
  <p>Excel process gets started in task manager but no Excel window get visible.</p>