You can send and receive Autodesk Navisworks files by email.
To send an open Autodesk Navisworks file, click the application button Send by Email
.
Autodesk Navisworks saves your file first, and then opens the available mail software and attaches your file to a blank email message.
You can email both NWD and NWF files, although the size of an NWD file will be considerably larger.