var ExcelSheet = new ActiveXObject("Excel.Application");


        ExcelSheet.Workbooks.Open("D:\\TEST.XLS");
       
        // Make Excel visible through the Application object.
        ExcelSheet.Application.Visible = false;
       
        // Place some text in the first cell of the sheet.
        ExcelSheet.ActiveSheet.Cells(2,1).Value = document.forms[0].txtName.value ;
       
       
        // Save the sheet.
        ExcelSheet.Save();
        
        ExcelSheet.DisplayAlerts = false;
        // Close Excel with the Quit method on the Application object.
        ExcelSheet.Application.Quit();
        // Release the object variable.
        ExcelSheet = "";