Google announced today that it is adding a feature to Gmail and Google Calendar that will let users download their data from the services. Users will be able to download all of their messages or appointments, or choose select labels and calendars. Google also offers the option to download a single archive of all account data across  Gmail, Calendar, Google+, YouTube, Drive, and more. Today's announcement is an expansion of Google's existing Takeout service, which has let users download their data from various Google services for some time.

Emails and other data will be downloaded from Gmail in the MBOX format, which users can then import into other email services. Recently, Microsoft revealed that it has been working with other email providers to be able to move messages between services, and this step by Google may be a result of that.

Google says that the option to download Gmail data will be rolled out to all users over the next month, while the Calendar data is available to download starting today.