I have an issue when i try to pass excel file datasouce on subreport with jaspersoft studio. net.sf.jasperreports.engine.JRException: net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Unable to get value for Excel field "Column_0" of class java.lang.String. I'm using this expression on datasource expression :new net.sf.jasperreports.engine.data.JRXlsxDataSource(net.sf.jasperreports.engine.util.JRLoader.getLocationInputStream("/../Data1.xlsx") I have try also this expression with xls : new net.sf.jasperreports.engine.data.JRXlsDataSource(new File("Data1.xls")) I have always an issue. I test vith Column0 and Column_0 and i get the same things. Is somebody have an answer ? Thank's in advance Al
