try{
    var win32ole = require('win32ole');
    // var xl = new ActiveXObject('Excel.Application'); // You may write it as: 
    var xl = win32ole.client.Dispatch('a.txt');
    xl.Visible = true;
    var book = xl.Workbooks.Add();
    var sheet = book.Worksheets(1);
    try{
      sheet.Name = 'sheetnameA utf8';
      sheet.Cells(1, 2).Value = 'test utf8';
      var rg = sheet.Range(sheet.Cells(2, 2), sheet.Cells(4, 4));
      rg.RowHeight = 5.18;
      rg.ColumnWidth = 0.58;
      rg.Interior.ColorIndex = 6; // Yellow 
      var result = book.SaveAs('testfileutf8.xls');
      console.log(result);
    }catch(e){
      console.log('(exception cached)\n' + e);
    }
    xl.ScreenUpdating = true;
    xl.Workbooks.Close();
    xl.Quit();
  }catch(e){
    console.log('*** exception cached ***\n' + e);
  }