Mellel file does not open

I have a Mellel document that simply would not open. I get an error message, and that's it. How can I recover the file? 

Mellel automatically backs-up any Mellel document into a backup folder. If the document you have does not open, do this:

  1. Choose Mellel (menu) > Preferences... 
  2. Under the Open & Save panel click the Open backup folder button. 
  3. Look for your file in the Backup folder (it's name would be prefixed by a tilde, ~).