Convert XLSM To SPREADSHEETML Online for Free. Free Online XLSM To SPREADSHEETML Converter. C++ XLSM To SPREADSHEETML. XLSM To SPREADSHEETML via C++....Conversion DOCX JPG PDF XML XLSX SPREADSHEETML Convert XLSM to...Factory::CreateIWorkbook(new String( "Input.xlsx" )); wkb->Save(new String( "Output...