@Tom @Reeza @Kurt_Bremser
My Internet search was a bit more successful. It appears this is a set of at least 20 year old macros from the University of Manitoba.
Here the links I found:http://mchp-appserv.cpe.umanitoba.ca/viewConcept.php?conceptID=1029
http://mchp-appserv.cpe.umanitoba.ca/concept/LINKS_samples.html
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