the xls export parameters under studio enables to manage xls export report with images (blob or local ressource) with Retain shape. However all xls.exporter parameters are not managed under JS R (test on several version from 6.4.3 to 7.2. the images are scaled to fit the cell. here the report parameters for xls export <property name="net.sf.jasperreports.export.xls.ignore.cell.border" value="true"/> <property name="net.sf.jasperreports.export.xls.ignore.graphics" value="false"/> <property name="net.sf.jasperreports.export.xls.image.border.fix.enabled" value="true"/> <property name="net.sf.jasperreports.export.xls.font.size.fix.enabled" value="true"/> <property name="net.sf.jasperreports.export.xls.white.page.background" value="false"/> <property name="net.sf.jasperreports.export.xls.remove.empty.space.between.rows" value="true"/> <property name="net.sf.jasperreports.export.xls.collapse.row.span" value="true"/> <property name="net.sf.jasperreports.export.xls.remove.empty.space.between.columns" value="true"/> <property name="net.sf.jasperreports.export.xls.one.page.per.sheet" value="false"/> <property name="net.sf.jasperreports.export.xls.detect.cell.type" value="true"/> Did I miss some parameters?