In Navisworks, click Home tab > Tools panel > Batch Utility .
In the Navisworks Batch Utility dialog box, use the Input area to create a list of design files for conversion:
In the Output area > As Multiple Files tab, choose the location for the converted files. By default, files are created in the same location as source files.
If you want to change the output location, select the Output to Directory radio button, and click the Browse button. Use the Browse for Folder dialog box to select the desired folder.
Select the Increment Output File Names radio button if you want to append a four digit number to the end of file name. By default, the old output files are overwritten.
Click the Run Command button.