Change completed scenarios to incomplete?

I would like to mark the scenarios incomplete, so as to play them again - an easy way to see what is left to do as I try to beat each scenario with each race. What I don’t want to do is lose everything else by deleting everything under “My Games”. Is there a single file I can modify or delete to do this?


yup, delete this file:

MyDocuments\My Games\GratuitousSpaceBattles\sc.dat

Thank you Cliff.