Our use case is to upload a document into Archer that would be accessible to all Archer users who has a general user role.
We have had a couple of ideas, like a SharePoint site, may be an attachment field on a contacts records...but, we don't have a SharePoint site setup and cant import attachments into millions of contact records.
If you're running Archer on-prem you can upload the file to the company_files \ [pin] and in the Contacts create as text box layout object and create a hyperlink to that file.
If hosted reach out to Archer support.