Thanks Sheila, 7-zip was able to open the file and it matches the .sql file downloaded without compression using phpMyAdmin. Guess I was expecting less compression, like a zip file.
So all is well with the new FQ MySQL control panel!
The gzip file from phpMyAdmin opens and in the file it reports "#2008 - MySQL client ran out of memory"
Of course now I am trying to remember how that game 7-up was played in school decades ago