The selected collection is saved to your computer in a JSON file. Mongo Management Studio allows you to export a collection either in JSON format or in CSV format. I you use the context menu in the navigation, the export will always use the JSON format. Using this file the included data can be imported into other collections using Mongo Management Studio or "mongoimport". I you open a collection and use the Button "Collection" -> "Export", and Dialog with several options is opened.
