title: How to Turn xcdatamodel file into xcdatamodeld file?
body: <p>I still have an xcdatamodel file.</p>
  
  <p>However, when I created a new project, xcode generate an xcdatamodeld file (with a d).</p>
  
  <p>I want to convert my xcdatamodel file into xcdatamodeld file. I know that xcdatamodeld is some form of directory.</p>
  
  <p>How would I do that?</p>
  
  <p>I can't copy the entity to the xcdatamodeld file</p>