Minecraft cheat

I accidentally played a word with cheat on my server, and now I realize that I'm not getting any achievements. So how do I  create a new world but with the previous world data without any cheat (cheat false)? I am hoping not to delete and create a new world from scratch as my current world having great progress. If I  could get the previous world map as the template for my new world is also great. It would be safe for a lot of time.