Rhino 5 python script

Hello,

I am wondering if it would be possible to write a python script that opens .3dm files that are in a specific folder and then uses the -saveas command (with a specific set of parameters) to overwrite them.

Am I dreaming, or is this worth delving into? I am a newbie to python, but I am relatively tech savvy, so I wanted to ask before I dive into a project that may have no solution.

Many thanks,
Alex