What is a WFM file?
A .WFM file is usually a data file created by digital oscilloscopes. Companies like Tektronix, Keysight Technologies, and Rigol use this format to store binary waveform data. Engineers use these files to capture, save, and analyze electrical signals.
However, a .WFM file can also be a Pro Tools Wave Cache File created by Avid Technology to store audio waveform display data. Alternatively, it might be a form file used by dBASE. Because the .WFM extension has multiple meanings, we recommend using viewer.online/wfm to identify the actual format of your file.
How to open WFM files?
You usually open oscilloscope .WFM files using software from the equipment manufacturer. For example, you can use Tektronix Waveform Editor. If your file is a Pro Tools Wave Cache File, Avid Pro Tools creates and reads it automatically behind the scenes.
If you do not have this specialized software, viewer.online/wfm can analyze .WFM files to identify the exact format and creator software. It allows you to inspect the file structure, extract readable text, and check whether an online preview is available.
Best practices and troubleshooting
Many oscilloscope users convert .WFM files to .CSV or .TXT format to analyze the data in a spreadsheet program like Microsoft Excel. Sometimes, different manufacturers use the .WFM extension for completely different internal structures. For example, a Tektronix file will not open in Rigol software. If you experience a compatibility problem, analyzing the file first can save you time.
Software and tools
Depending on the origin of the file, popular software includes Avid Pro Tools for audio professionals, dBASE for database managers, and tools like Tektronix WaveStar or Rigol Ultra Scope for electronics engineers. There are also community-built Python libraries available on GitHub for parsing Tektronix files via the command line.
Summary
viewer.online/wfm can analyze .WFM files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available. This makes viewer.online/wfm highly useful for identifying, inspecting, and understanding .WFM files without installing software or dealing with compatibility problems.