I don't know what is required here but exporting as PCM is doable simply enough in Audacity (nice little open source audio editor). Hopefully no need to find some near forgotten script someone hacked together in VB some decades ago.
In the version I have here it is file - export - other uncompressed files and then headerless and whatever flavour of PCM you care for (you would presumably have sorted the frequency, channels and whatnot beforehand. Frequency can be done with "tracks - resample").
Assuming it does not simply detect it then you can import it as well with file - import - raw data and selecting the appropriate options.