We've migrated file servers into SharePoint Online for over a decade. Done well, it ends the office file server: versioned, searchable, shareable by link, available anywhere.
Done badly, it's the same mess with a browser. The condition is information architecture: structure, permissions and sharing defaults designed before migration, not patched after.
Verdict: the right home for business documents, if you respect the setup.
Reviewed from live fleet experience · published June 2026 · we earn a fair margin on some products we supply; reviews are not sponsored.
