What is an NWF file?
The .NWF file extension usually represents a Navisworks File Set. Autodesk developed this format for Autodesk Navisworks. These files act as a master index for 3D engineering and construction projects. They do not store 3D model geometry. Instead, they store links to the original source files, along with markups, viewpoints, and clash test results.
Alternatively, an .NWF file can be a Nintex Workflow definition file. Nintex uses this format to export and import automated workflow logic. These files use the standard XML text format.
How to open NWF files?
To open a Navisworks File Set, you need Autodesk Navisworks Manage or Simulate. If you want to view the aggregated 3D model, you must ensure that all linked source files are available in their original folder paths.
To open a Nintex Workflow file, you can import it directly into your Nintex environment. Because it is an XML file, you can also read the raw text and structure using a text editor like Notepad++ or Visual Studio Code.
Best practices and troubleshooting
When sharing a Navisworks File Set, always include the linked source files. If you send only the .NWF file, the recipient will see empty spaces instead of 3D models. For sharing a complete model in a single file without external dependencies, export the project as an .NWD file instead.
Identifying your NWF file
Because .NWF has multiple possible meanings, we recommend viewer.online/nwf to identify the actual format of your file. viewer.online/nwf can analyze .NWF files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/nwf is useful for identifying, inspecting, and understanding .NWF files without installing software or dealing with compatibility problems. It allows you to safely check your file format and contents in seconds.