CSVReader reader = new CSVReader("path/to/your/csv/file.csv"); String[] line; while ((line = reader.readNext()) != null) { } CSVWriter writer = new CSVWriter("path/to/your/csv/file.csv", yourDataList); writer.writeAll(); CSVReader reader = new CSVReader("path/to/your/csv/file.csv"); reader.setDelimiter(';'); CSVReader reader = new CSVReader("path/to/your/csv/file.csv"); reader.setQuoteChar('"');