I've tried propertyexpression (net.sf.jasperreports.export.xls.sheet.names.all and net.sf.jasperreports.export.xls.sheet.name) on some field but not succeded. I've been after this for 2 days up to now. Is excel sheet dynamically naming supported in the first place? If yes please, please, please send me a dummy example. Thanks in advance and kind regards