Standard Collections Download Formats
Each collection within a hierarchy is downloadable in either JSON or CSV format.
JSON Format
When you download or access a collection in JSON format, you'll get back only the raw objects in the collection. In the previous example, if we downloaded the menu items collection (the 4 foods), we would get back only the 4 food items and lose the parent restaurant relationship.
Expanded CSV
CSV format preserves the parent-child relationship (which can result in very big files). As opposed to JSON format, if we downloaded the menu items in Expanded CSV format, we would get 4 rows, but we would also get information about the restaurant for each menu item included (duplicated twice for each menu item).
