You can export drawings to the Navisworks format .nwd.

Exporting to .nwd

To export a drawing to Navisworks:

1. Go to File > Import & Export > Export Drawing:
   
   
2. In the Save as dialog that appears, select a file destination, name the file, select file type (.nwd) and click the Save button. This will direct you to the Export Navisworks (nwd) drawing dialog where you make all the export settings:
   
   
   The Export Navisworks (nwd) dialog
   1. In the Scale and unit field, choose the Scale by using one of the buttons or by entering a value in the text box to the right. Continue to set a Distance unit. You can choose to pick the scale from your 2D View Clips, given that the Paper View option has been enabled in the Export section below.
   2. The Export field enables you to determine what drawing information you want to export: your current 2D View, 3D View, or Paper View. For Paper Views, you can choose to export All active papers, which will export all papers into one file and display them as a series, or only the Current Paper.
   3. To specify what part of the drawing you would like to export, check the Filter box and then click the Filter settings button.
   4. Click on OK when you have finished your selections.

Filter settings

You can choose just to export a part of a drawing to dwg/dxf. If, for example, you have a drawing of an entire building, you can choose to export just one of the rooms.

To specify what part of the drawing you would like to export, check the Filter box and then click the Filter settings button.

Selection tab

Check All to export the whole drawing, or Selection to export selected areas in the drawing:

View Modes tab

This tab lets you filter out which View Modes should be included/excluded in the export:

Filter tab