Answer 1

Useful links have a read :

•https://www.tutorialspoint.com/how-to-convert-a-json-array-to-csv-in-java

•https://www.baeldung.com/java-converting-json-to-csv

•https://stackoverflow.com/questions/7172158/converting-json-to-xls-csv-in-java

•https://www.quora.com/What-is-the-best-method-for-converting-a-JSON-into-a-CSV-file

•https://www.convertcsv.com/json-to-csv.htm