My app was turned down in the iTunes store because UIFileSharingEnabled is set to true.
I see you can turn it off here:
But what is the 'External Storage' setting for? Is it necessary to save draft reports in the Quick Report app?
Here is the full error message from iTunes connect:
Your app has the UIFileSharingEnabled key set to true in the Info.plist, but the Documents folder includes files and folders not intended for file sharing. If your app does not require the file sharing feature, please set the UIFileSharingEnabled key in the Info.plist to false.