Add the converted files to the list and click "convert" conversion can be done automatically. User-friendly interface allows you to use very easily without any learning curve ,Batch convert XLSX, XLSM to XLS format with fast speed and good qualityalso Ailt XLSX XLSM to XLS Converter can help you batch convert Excel 2007-2010 format file(*.XLSX,*.XLSM) to Excel 97-2003 format file(*.XLS) with professional quality and fast s