To Open a Published i-model

You can open an i-model in Navigator Mobile and/or Bentley Navigator, if you have the application software installed.

From the Project info panel, select Published models. A list of the i-models (.IMODEL AND .I.DGN files) displays.
Select the model you want to open. You have the option of opening the file directly or saving it to a directory location.
Select Open or Save.
If you select Open, either the application opens and displays the i-model or the Open with dialog opens allowing you to choose which program to use to open the i-model.

If you select Save, you have the option to Save, Save as, or Save and open.