Both Google Takeout and Google Transfer can be used to move data (email, files, etc.) out of a Google account.
- Google Takeout
- Using Takeout, you are downloading the data to a separate file that can be uploaded to another application or account (Google or non-Google)
- See this Google article
- See this FAQ for more information
- Google Transfer
- Using Transfer, you are directly transferring data from one Google account to another Google account
- See this Google article
- See this FAQ for more information