Do you have a lot of archive files loaded? Or perhaps archives of multiple mailboxes? If so it can get a little confusing. Follow the quick steps below to rename your archive files.
Microsoft Outlook Archive File
In Outlook, right click on the title/header of the archive folder and click on “Data File Properties.”
Then click on the “Advanced” button.
Then in the Name field you can name it whatever you choose to. Click Apply and hit OK. And your good to go!