Even if I set JRXlsExporterParameter.IS_FONT_SIZE_FIX_ENABLED for JRXlsxExporter, the font size don't change. * JRXlsExporterParameter.SHEET_NAMES also fails. ...JRXlsxExporter exporter = new JRXlsxExporter();exporter.setParameter( JRExporterParameter.JASPER_PRINT_LIST, jprintList);exporter.setParameter( JRExporterParameter.CHARACTER_ENCODING, "UTF-8" );exporter.setParameter( JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);exporter.setParameter( JRXlsExporterParameter.IS_DETECT_CELL_TYPE, Boolean.TRUE);exporter.setParameter( JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.TRUE);exporter.setParameter( JRXlsExporterParameter.IS_FONT_SIZE_FIX_ENABLED, Boolean.TRUE);exporter.setParameter( JRXlsExporterParameter.MAXIMUM_ROWS_PER_SHEET, MAX_ROWS_PER_SHEET);exporter.setParameter( JRXlsExporterParameter.SHEET_NAMES, arraySheetNames);exporter.setParameter( JRXlsExporterParameter.OUTPUT_STREAM, bos);exporter.exportReport();...