Transferring Game Save Files From One Account To Another

[frankenste1n]

Hello,
I've been playing Hades from my friends' account for a couple of months now because my PC was broken. Now that it's all fixed I'd like to transfer my save files to my account so I won't have to start from scratch. No matter how much I've tried I cant seem to find a way to do it, does anyone know how? I've messaged SuperGiant Games but I haven't gotten a response yet. Also I don't know if it matters but our accounts are friends and we are using family sharing.