Can you rebuild a storyline file from the Published Information

We have a Storyline file that is returning a corrupt error message. We have tried multiple ways to open this with no luck. We do have the published files and a zip file with that published info. We're hoping to not have to recreate the lesson from scratch. Is there a way to rebuild the storyline file from the published files? I've attached the zip file with the published content, but I cannot attach the storyline file as it is too large.