title: How to change file extensions in Xcode 4.3 iOS?
body: <p>My idea: syncing music without wifi or bluetooth. Its a work around to use camera connection kit to copy files to and from ipad without JAILBREAKING!First I get the the files I want , then I compress them into a zip file. Then I want to rename the extension JPG, so the iPad can recognize the file. Then I copy it to my sd card, then use camera connection kit to connect it to my iPad.</p>
  
  <p>I wanted my app to copy the entire jpg form dcim so that I can change the file extension back to zip,then extract it to retrieve my files.</p>
  
  <p>But so far I have only found a way to copy the file/jpg into my app but now I need to change the file extension back to zip, then export it to another app to be unextracted to retrieve my file.</p>
  
  <p>Ps: I just need to figure out how to change file extensions in the app and export it!</p>