Have you ever wished you could go back in time and look up an old version of a document or recover a deleted file? Never worry again! Dropbox keeps snapshots of every change you've made over the last 30 days, so you can view past edits and restore any file you need. And if you use Dropbox Pro or Dropbox for Teams, you'll have access to Packrat, a feature that saves your file history indefinitely, so you can always return to a previous version.