[Zubersoft]

It shouldn't be possible to have every device share the same database file as the Windows version stores the file in the application folder (C:\Users\<your username>\AppData\Local\Packages\41730Zubersoft.MobileSheets_ys1c8ct2g6ypr\LocalState). So I'm not sure how you could possibly be sharing that among all the devices. The sync feature only works with cloud folders - it does not work with a network share. You can batch import files to process changes both to existing files and to get new files, but this is very different from synchronizing the database which also transfers things like annotations, link points, page order changes, etc.

Mike