My minecraft world is corrupted

Access Application Data\.minecraft\saves. ...

1. Make a copy of the corrupted world folder & all files & folders inside, and rename it however you please. ...
2. Start Minecraft and create a new world, then save and close Minecraft. ...
3. Go back to Application Data\. ...
4. Cut the files (but not the folders) from the new saved world folder.
5. how-to-recover-corrupted-saved-world

Minecraft doesn't need internet to work unless you play on multiplayer mode. Do you save your world before close your Minecraft? If is corrupt I suggest to copy the corrupted world and check tutorial for uncurrupt it.

Maybe your whole Minecraft data is corrupted. Try to save your worlds on a flashdrive and then delete Minecraft and then redownload it and put your worlds back on it.

So somehow overnight it fixed itself enough to allow me to resign in with my gamertag and my settings seem to re-synced. However, I tried to pop onto my Minecraft world first and it corrupted the save data of a world. I'm trying to recover it now- but as for the xbox issue, I don't know how, but it's more or less resolved after three system resets and clearing all my accounts which seems to have corrupted save data. I'm worried that it will have corrupted more than a little Minecraft world, will return with an update later.

Thanks. But my local save was not corrupted. It is that I did a Xbox factory reset. After that, I did try to re-sync my Minecraft world (500+MB) and the console said "the cloud save is corrupted".

Is it possible that I get the "corrupted" save from your cloud storage and then I can try to repair it? The Minecraft save is so precious to us. Is this possible?