求教---JS無法打開Excel文件

請高手指教，謝謝～～
代碼如下：
該功能無法實現--無法將表格的數據粘貼到Excel文件對應的位置
  var idTmr = "";
  function CellToTable(tableID)
  {
        try
        {      
                               
                var sel=document.body.createTextRange();
                sel.moveToElementText(tableID);
                sel.select();
                sel.execCommand("Copy");                var exApp = new ActiveXObject("Excel.Application");
                
                 exApp.DisplayAlerts=false;
                 exApp.Visible=true;
                 var oWB=exApp.WorkBooks.Open("D:\EATD_report\manager\MSL DVSC EATD WR1.xls");              // var oWB = exApp.WorkBooks.add();
                var exSheet = oWB.WorkSheets(1).range("A19");
                exSheet.Paste();                exApp.SaveAs("D:\EATD_report\manager\MSL DVSC EATD WR.xls");
                               exApp.Quit();
                exApp = null;
                             idTmr = window.setInterval("Cleanup();",10);
        }catch(Exception)
        {
                        }
  }
    function Cleanup() 
  {
      window.clearInterval(idTmr);
      CollectGarbage();
  }