title: Difference between a storyboard and a storyboard package?
body: <p>When I go to move a view controller into it's own storyboard file I go to Xcode > Editor > Refactor to Storyboard. Here, a pop-up window shows for naming the new storyboard file and some various settings. One of these settings is <strong>Format</strong> with 2 options: </p>
  
  <p><strong>Interface Builder Storyboard</strong> or 
  <strong>Interface Builder Storyboard Package</strong></p>
  
  <p>(see screenshot)</p>
  
  <p>What is an Interface Builder Storyboard Package and how is it different than an Interface Builder Storyboard?</p>
  
  <p><a href="https://i.stack.imgur.com/2Bo3Lm.png" rel="noreferrer"><img src="https://i.stack.imgur.com/2Bo3Lm.png" alt="Interface builder storyboard package"></a></p>