How to Open NWD File in AutoCAD?

Understanding NWD Files

Navisworks NWD files are designed for non-editable, secure sharing of 3D models and project data. These files encapsulate geometric information, properties, comments, and clash detection details, making them essential for collaboration among stakeholders who may not have access to the original design software.

Challenges in Opening NWD Files in AutoCAD

AutoCAD does not support direct opening of NWD files. However, there are workarounds to access the contents of these files within AutoCAD, mainly by using intermediary formats such as DWF and FBX. This article outlines the steps for achieving this.

Step-by-Step Process to Open NWD Files in AutoCAD

Step 1: Export NWD to FBX Format

1. Open Navisworks: Launch the Navisworks application where your NWD file is stored.
2. Load the NWD File: Navigate to your NWD file and open it in Navisworks.
3. Export to FBX:
   • Go to the Export menu.
   • Choose the option to export and select FBX as the file format.
   • Follow the prompts to save the FBX file to your desired location.

Step 2: Import FBX into AutoCAD

1. Launch AutoCAD 2025: Open AutoCAD on your computer.
2. Access the Import Function:
   • Click on the Insert tab on the ribbon.
   • Locate the Import panel.
3. Select the FBX File:
   • Click on the Import option.
   • Browse to find the FBX file you just exported from Navisworks.
4. Configuration Settings:
   • Choose whether to specify layer assignments for imported objects.
   • Set any required conversion units.
5. Complete the Import: Click Open to finish the importation process.

Alternative Method: Using DWF as an Intermediary

Step 1: Export NWD to DWF

1. Open Navisworks: Launch the application and load your NWD file.
2. Export:
   • Navigate to the Export option.
   • Select DWF as the export format and save the file.

Step 2: Import DWF into AutoCAD

1. Open AutoCAD 2025: Start your AutoCAD application.
2. Create a New Drawing: Start a new drawing project.
3. Attach DWF File:
   • Use the DWFATTACH command to attach the DWF/DWFx file.
   • Follow any prompts that come up.
4. Plot or Export:
   • Once the DWF is attached, you may choose to plot it or export it to a PDF.

Step 3: Import PDF into New Drawing

1. Start a New Drawing: Open another file.
2. Use PDFIMPORT Command:
   • Utilize the PDFIMPORT command.
   • Select the PDF generated in the previous step.
3. Finalize: Adjust any settings and complete the import process.

FAQ Section

1. Is it possible to convert NWD files directly to DWG format?

No, NWD files cannot be converted directly to DWG. You must first export them to a compatible format like FBX or DWF before importing them into AutoCAD.

2. Can I view NWD files without Navisworks?

Yes, you can use various online viewers specifically designed to open and view NWD files without needing Navisworks.

3. Are there limitations to importing FBX files into AutoCAD?

While importing FBX files provides good integration for 3D models, some metadata and specific properties from Navisworks may not be maintained in the FBX format during the conversion.