Rags - I restored the file from Dropbox and it completed without hanging like you described. Having said that, there are 1051 missing files, so it looks like almost every file in the entire library is missing. I'm going to try it again and dig into why that that's occurring.
Mike
UPDATE:
Rags - the file you uploaded appears to have major issues. MobileSheets is having to try to skip bad data in the file. I would suggest creating a new backup file and trying to restore that one. I tested this by just putting the backup file on the tablet itself to rule out any Dropbox issues, and the backup file just appears to be corrupted/invalid. I restored the same backup file on Windows, for example, and it also has the same errors there. So this is not an iOS issue.
Mike
UPDATE:
Rags - the file you uploaded appears to have major issues. MobileSheets is having to try to skip bad data in the file. I would suggest creating a new backup file and trying to restore that one. I tested this by just putting the backup file on the tablet itself to rule out any Dropbox issues, and the backup file just appears to be corrupted/invalid. I restored the same backup file on Windows, for example, and it also has the same errors there. So this is not an iOS issue.