Download complete archived games?

At one time there was an option that allowed you to download your
complete archived games all at one time, regardless of how many
there were.

I did it once with about 50 or 60 games at once, downloaded as one
large text file. Once it was downloaded, all that was necessary was to
rename the file and change the extension to a PGN file. After that
you could review all of your games off-line using winboard.

I would be interested in doing it again, but cannot remember how to
do it.

Are there any old-timers still around that have also done this? If so,
please post the instructions here, if you would!

Thanks, Marc