Provide setting to disable Autosave at the desktop and mobile versions
The default autosave setting can destroy a spreadsheet if you open a complex one, do some modifications for test and realize that autosave has overwritten your file with a useless version. It should have a global setting that will turn this feature off to all files. The option of changing registry entries is ridiculous to ask to a normal user to do and it will not work on an iPad or other mobile platform at all
Yes, please disable the Auto Save, it is incredibly dangerous, as well as annoying.