A packaged iModel is a V8-format DGN file that references published files that are physically embedded within the packaged file itself. Packaged file names end with an I.DGN extension. The packaged files also contain files linked by callouts or files linked in Explorer.

Packaged files are protected and the recipient may need to enter a password or possess a digital certificate to open the file. However, a special type of "everyone" protection allows anyone to open the file, while being limited in using the file, based on the rights assigned by the creator of the packaged file.