Archived Files do not appear in your standard file list unless you switch from the Active view to Archived. Similarly, once you switch to Archived, you can't see any Unarchived Files until you switch back to Active.
To View Archived Files:
Click Files on the left-hand navigation, or navigate to the Files tab under an Account or Contact.
Click the blue Active filter.
Click Archived.
You will now see all the archived files.
Note: Files archived on the firm-side are not archived for the client. Clients will not see or know that you have archived their files and will see their files normally.
Related article: How to Unarchive a File