Convert CSV file to Excel file in Ax 2012

static void CsvFileToExcell(Args _args)
{
#Excel
      SysExcelApplication excel;
      SysExcelWorkBooks books;
      Filename excelFileName;
      Filename csvFileName;
      ;
      csvFileName = 'D:\\csv.txt';
      excelFileName = ' D:\\csvtoexcell.xls';
      excel = SysExcelApplication ::construct( );
      excel.displayAlerts (false);
      books = excel.workbooks( );
      books.open(csvFileName,0,false,2,"","",false,#xlWindows,",",false,false,1,false,false,1,false);

      books.item(1).saveAs(excelFileName);
      excel.quit() ;
}