How to reuse a world? (Seed)

[Markas]

I have a really good world with tons of resources and such. Is there a way to copy the world into another save slot? (Same world, 2 different servers)

[Kratos]

https://www.reddit.com/r/dontstarve/comments/5dqltg/me_and_my_friend_figured_out_how_to_reroll_a_map/

[Markas]

Thanks except old necro