PICS file

I have an old file. Created 1990. It is a PICS file. An old type of
animation file, consisting of a sequence of PICT resources to be shown
in order. I want to covert it to a current form of video file. Any
idea? Graphic Converter will open it, and display it as a slideshow or
a movie. But I did not figure out how to get Graphic Converter to save
anything but a single frame. Super ResEdit will show me the PICT
resources. But doesn't have any automated way of saving them to files.