Good guess; as a matter of fact there are other files with an extension made up of the contributor's initials and a digit.
On Fri, Feb 17, 2023 at 3:20 PM Brian K. White <b.kenyo...@gmail.com> wrote: > On 2/17/23 13:51, Gary Weber wrote: > > Hi Mike, > > > > I'm not sure what those extensions represent either, > > .pw1 is probably for Phil Wheeler > > and .des is probably description based on the contents > > IE, not intended to indicate file types > There's a fair amount of that scattered through the m100sig > > -- > bkw > >