Users will no longer be able to access files from within a .zip directory without downloading and extracting the .zip directly. Previously users could click into the .zip file and download individual files inside it.
Users will still be able to browse inside the .zip file and preview files, but they must download the entire directory to access specific files. Files that are not needed can then be deleted.
This functionality will be disabled for OneDrive, SharePoint, and web applications in May.