@CsvColumn(index = 0, name = "id", type = Long.class) private Long id; @CsvColumn(index = 1, name = "name", type = String.class) private String name; @CsvColumn(index = 2, name = "age", type = Integer.class) private Integer age; CsvReader<YourObject> reader = CsvFactory.createReader(YourObject.class, csvFile); reader.setRowFilter(row -> row.getField("age", Integer.class) > 18); List<YourObject> filteredData = reader.read(); reader.orderBy("name", SortOrder.ASC); CsvWriter<YourObject> writer = CsvFactory.createWriter(YourObject.class, outputFile); writer.write(filteredData); writer.close();