<dependency> <groupId>com.opencsv</groupId> <artifactId>opencsv</artifactId> <version>5.4</version> </dependency> String csvFilePath = "path/to/csv/file.csv"; CSVReader reader = new CSVReader(new FileReader(csvFilePath)); String[] nextLine; while ((nextLine = reader.readNext()) != null) { } String csvFilePath = "path/to/csv/file.csv"; CSVWriter writer = new CSVWriter(new FileWriter(csvFilePath)); String[] data = {"value1", "value2", "value3"}; writer.writeNext(data);