Archiving is a great way to put away a team you no longer need, without having to delete the team.
Once a team is archived, its content becomes read-only but still searchable. You can easily access information in the archived team, and mention the page ("@" followed by the page name) to provide a link to a page in an archived team.
Note: This is a Pro-only feature.
Team Owners can archive a team from the 3-dot menu next to the team name.
The archived team will appear in the Archived section in My Teams.
Unarchiving a team is easy – simply navigate to the archived team and select Unarchive Team.