Bob if your father schooled you like mine did for me, saw setting started with heating the teeth to a dull red (blowlamp!!) then you filed each individual tooth reset the softened teeth, reheated them and oil quenched them at just the right time and technique to reharden but not make them brittle in service. Did all that for years, but these days it is easier to buy a new handsaw for $7 to $15 that cuts far easier that the old ones...there's a number of saw sets here, going back to grandad, but they're useless on hardened teeth.
cheers
Bob
Much the same with drills, for years I used to sharpen them as a bit of a party trick when we visited at farms etc, and I still sharpen some of my own collected over the years,drills , but again easier to buy a new one or a dozen..
Ken