Google Takeout & Transfer
Migrating Your PGSD Accounts to a Personal Account
5. Login to the destination account, open the Verify email and click Get Confirmation Code.
Confirmation notice is then sent. Depending on the size of your account, this may take up to a week to transfer between gmail accounts.
You will not need all of the accounts selected. Click the Select None button then find the apps you do want to save such as Mail, Drive and maybe Classroom (for teachers).
Google Docs, Sheets, and Slides will convert into Microsoft Office compatible files.
5. Your Takeout Folder Will Appear in Drive
You will also receive an email with a link to your zipped folder