# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-01-28 00:01:28 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/163049011979370496) Quick Tip: Don't store your iBooks Author iba file on Dropbox, seems to mess it up. Now can't open it and I've lost an hour or so of work :/