https://opencsv.sourceforge.net/

https://mvnrepository.com/artifact/com.opencsv/opencsv

2022
https://www.baeldung.com/opencsv

public String writeLineByLine(List<String[]> lines, Path path) throws Exception {
    try (CSVWriter writer = new CSVWriter(new FileWriter(path.toString()))) {
        for (String[] line : lines) {
            writer.writeNext(array);
        }
    return Helpers.readFile(path);
}

public String writeAllLines(List<String[]> lines, Path path) throws Exception {
    try (CSVWriter writer = new CSVWriter(new FileWriter(path.toString()))) {
        writer.writeAll(stringArray);
    }