<dependency> <groupId>org.jxls</groupId> <artifactId>jxls-core</artifactId> <version>2.6.0</version> </dependency> InputStream templateInputStream = new FileInputStream("path/to/template.xls"); OutputStream targetOutputStream = new FileOutputStream("path/to/output.xls"); Context context = new Context(); context.putVar("data", yourDataObject); JxlsHelper.getInstance().processTemplate(templateInputStream, targetOutputStream, context);