Please implement a possibility to export all data to another Cloud Service

Please implement a possibility to export all data to another Cloud Service, just like Google did it with Google Takeout. For me flexibility is really important and so I don't want to use a Cloud Service, where I have to stay until I die if I can't or don't want to download all my data – which is with data from about 2 TV very difficult – and upload it to the other Cloud service…