just pull it out of your recycling bin really though I would just start fresh from day 1, the game is not that unforgiving to start from the beginning and you may miss out on new stuff/mechanics simply dragging it all along with you every update
I've already made good progress on my 0.7 save (day 22, half-full GPU farm), not saying its difficult, i just want the added stuff so i can focus other areas sooner. (also i perma shift+delete everything, no recycling bin clutch for me)