What is a WDF file?
The .WDF file extension represents several different data formats. The exact contents depend on the software that created the file.
In engineering, a .WDF file is often a Waveform Data Acquisition file. These are created by Yokogawa Corporation instruments to store measurement data. In scientific research, a .WDF file can be a Raman Spectroscopy data file used by Renishaw WiRE software.
In the business and legal sectors, a .WDF file is frequently a Workshare Compare DeltaFile. Workshare (now part of Litera) uses this format to store document comparison redlines. Other software systems also use the .WDF extension. It is used for game data archives in Conquer Online, workflow definition files in Microsoft Windows Workflow Foundation, and Windows Driver Foundation files.
How to open WDF files?
You must know the origin of your .WDF file to open it with the correct software. You can open a Yokogawa waveform file with Xviewer. You can open a Workshare Compare DeltaFile with Litera Workshare Compare. Workflow definitions can sometimes be opened in text editors or XML viewers.
Because .WDF has multiple possible meanings, viewer.online/wdf can analyze .WDF files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Best practices and troubleshooting
If a program fails to open your .WDF file, do not force it. A spectroscopy file will not open in a document comparison tool. Look for text inside the file using a hex editor or a specialized inspection tool to find clues about the creator software. Some .WDF files, like workflow definitions, are standard ZIP or UTF-8 text files under the hood.
Summary
viewer.online/wdf is useful for identifying, inspecting, and understanding .WDF files without installing software or dealing with compatibility problems. If you do not know which program created your file, this tool will help you find the answer.