Tektronix is a company that produces oscilloscopes. These machines produce files in a proprietary file format known as .wfm. These .wfm files cannot be opened by more common computer applications. However, you can convert .wfm files into a few other file types including text files (.txt), comma-separated files (.csv), MATCAB and MATLAB files. These output file types are much more commonly used than the .wfm file format.
Download and install the Tektronix Windows Oscilloscope WFM Converter from the following URL:
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It is a free application that will allow you to convert .wfm files.
Double-click the WFM converter .exe file and open up the command line in Windows.
Select the .wfm file you would like to convert by entering the location and file name into the command line. For example, "ConvertTekWfm [ /c:/files | samplefile.wfm [ /TXT] [samplefile.txt]". The location for .wfm file c:/files and the file name is "samplefile.wfm".
Select the output file type by entering the second argument in the command line. For example, "ConvertTekWfm [ /c:/files | samplefile.wfm [ /TXT] [samplefile.txt]". In this case, "[/TXT]" is the output file format.
Click "Enter" and the conversion should take place. Locate the file on your computer to make sure the conversion worked properly.