title: C# Microsoft.Office.Interop.Excel will not open Excel Window
body: <p>I have a main method here that is simply trying to open an excel workbook. This same script works on other machines, but I can't get it to work on this machine. It starts a background EXCEL.exe process, but does not open an excel window. </p>
  
  <p>If I end that process in the task manager, and then open excel, it shows the workbook in the mySheet string variable in the document recovery pane. So something opened. I just couldn't see it. What am I missing here?</p>
  
  <p>Using a Console Application in Visual Studio 2017. Excel 2016 64 bit.</p>
  
  <pre><code>using Excel = Microsoft.Office.Interop.Excel; 
  
  static void Main(string[] args)
      {
          try
          {
              string mySheet = @"C:\\Users\\dwh002\\Documents\\ZIP_COUNTY_032017.xlsx";
              var excelApplication = new Excel.Application();
              excelApplication.Visible = true;
              var workbooks = excelApplication.Workbooks;
              var workbook = workbooks.Open(mySheet);
          }
          catch (Exception)
          {
              throw;
          }
  </code></pre>