The "archives" is probably not what you think it is. It is simply a collection of group messages that have accumulated over the months/years.
As for managing them, outside of splitting/merging threads and other such daily maintenance, there isn't much you can do. You can download a backup in MBOX format (readable in any text editor). Open the Admin->Settings tab and click on the "download archives" button at top right.
Bruce
-- Sent from my humble desktop computer
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----- Original Message -----
From: Marti Garner Gmail <marti.wulfow51@...>
To:
[email protected]Sent: Mon, 02 Apr 2018 18:49:20 -0400 (EDT)
Subject: [GMF] Archive information
Where can I find information on the archives and managing them?