Unstructured Document Processing now extracts data from files stored in Amazon S3, not just files stored natively in Salesforce. Agencies can extract data from documents, such as resumes, without first moving those files into Salesforce.
Where: This change applies to Lightning Experience in Enterprise, Performance, Unlimited, and Developer editions where Agentforce Public Sector is active. Requires Agentforce for Public Sector, Omnistudio for Public Sector, and Data 360 licenses.
How: Select Salesforce Go from the gear menu 
or from the main Setup menu. Then search for Unstructured Document
Processing.