Open Gmail
In the search bar, type `in:archive`
Press Enter
Review the archived emails in the results
To find a specific archived email, search by sender, subject, or keyword with `in:archive`
On mobile, open the Gmail app
Tap the search bar
Enter `in:archive`
Tap Search
Check the archived messages in the results
To move an archived email back to the inbox, open the email and select Move to Inbox