A weekly Navisworks .NWD file (published, read-only) for client review, plus a .NWF (working file) containing all clash tests and saved viewpoints.
If you're interested in getting started with Autodesk Navisworks, here are some steps to follow: autodesk navisworks
offers different versions of Navisworks tailored to specific user needs: System requirements for Autodesk Navisworks 2026 products A weekly Navisworks