title: what is dimens.xml(w820dp) in android studio.?
body: <p>Upon creating the new project in android studio in the following path were created two xml files by default.</p>
  
  <pre><code>..res/values/dimens.xml
  ..res/values/dimens.xml(w820dp)
  </code></pre>
  
  <p>Am aware of the file <strong>dimens.xml</strong> where we can define the dimensions for the elements, but why the second file <strong>dimens.xml(w820dp)</strong> created by default.</p>
  
  <p>Can someone please shed lights on why it is needed and when we can use it.</p>