Jsonlines is also an excellent intermediary format for working with any huge datasets that are just too big to be loaded into the memory all at once, and where

Jsonlines is also an excellent intermediary format for working with any huge datasets that are just too big to be loaded into the memory all at once, and where data is hierarchical so csv is not an option. Compared to XML you save a lot in the total file size, and it's just as easy to parse.