One of the features of Site Studio is the ability to backup and restore websites. It takes all of the assets associated with the website and combines them into a backup directory that is stored on the server and can be downloaded as a zip if needed. When it comes time to restore, you simply choose that backup from the server or upload the zip file saved earlier. The mechanism that Site Studio is using in the background is simply a specialized Archiver process. An archive is defined dynamically with the proper export criteria to grab the site assets and they are exported to that backup directory. Then when you request a download of that backup, UCM zips that standard archive directory and delivers the zip file to the client browser.
Well, it turns out that this ability to download and upload zipped archives does not have to be for just Site Studio sites. You can do this for regular content archives as well.
First, when you go to the Archiver applet, you're taken to the default collection of archives. In the menu, go to Options -> Open Archive Collection. There you should see another one with the name "<instance name>_sitestudiobackupcollection". Select that collection and click Open.
This collection got created when Site Studio was installed and is where site backups are archived. And even if you aren't using Site Studio at all, as long as you have it enabled, this feature will be available. If you've done backups or restores already, you'll see those listed. Now that you have the collection open, you can add your new archives here. You can create those just as you normally would.
Now perform the archive Export process. The content/table data will then get exported to the collection location on the server.
To download the archive, go to Administration ->; Site Studio Administration -> Backup and Restore. Click the Managed Archives button. You should now see your archive in the list.
With the Actions icon, select 'Download backup archive as ZIP'. This will zip up the archive and allow you to download it locally. Note, large archives may take a while to zip up and may time out if too large. For those types of archives, I'd recommend setting up the traditional ways of migrating the archive.
Now that you have your archive, you can just as easily import it into your target instance. On that instance, go to Administration -> Site Studio Administration -> Backup and Restore. In the Upload Archive section, browse to your saved archive and click Upload Archive. You'll then be taken to the archive information screen.
On the Actions menu, select 'Restore backup archive contents'. This will now import the archived documents. If you wish to include some import mappings, you can simply go to the Archiver applet and set up the mappings there and do the import right from the applet.