title: Core Data export and mail in Xcode
body: <p>I created an App that uses core data and I want to export the core data into a form that can be mailed and/or synced on a later version of this app. Can you please let me know 
  1- which form (XML, CSV, PDF...etc) is the best to export to from core date?
  2- I need to send file via mail from the App itself so keep this in mind
  Appreciate if you could divert me to youtube tutorial or Stackoverflow question where I can find code for what I need. Thanks in advance for the help</p>