Need help with game saves

[Flame1]

so i've had trouble with game saves in the past and i just don't know what to do. currently i have only 1 world in my 1st survival slot, its a fresh game but its world 2 because ive gone through the teleportato. i wanna make my base properly this time, but i dont want to continue playing in that world until i know how im going to build my base, so in the meantime, I WANT TO MAKE A COPY OF MY CURRENT WORLD, AND PLAY IT IN A SECOND SURVIVAL SLOT. the only problem is, i dont know how, when i go into my remote folder, i see survival_1 (not sure if this is my world or a save from the last time i was messing around with files, but most likley my world) and a survival_3 file, even though there is no world in my 3rd survival slot. everytime i delete the survival_3, it always ends up back in my remote folder because of steam cloud. 

 

so if someone could help me get rid of this survival_3 file, and help me make a copy of my current world i can play in a new slot, id really appreciate it