How can iModel (i.dgn) files be opened or appended in Autodesk Navisworks?
Please follow the below steps to achieve this.
1. Go to Application Button and left click on the Options.
2. In Navisworks 2020 and above versions, there is a beta loader that can load i.Models into Navisworks. Go to File Readers > DGN, and enable Use Beta File Reader and set the Default option for Convert Model.
This way, one can open iModel (i.dgn) files in Autodesk Navisworks.