title: using and/or extracting expandable files (obb) android
body: <p>I was able to upload an expandable file and download it
  on my app from google play. Following the o<code>[fficial tutorial][1]</code> </p>
  
  <p>It saved the obb file to /Android/Obb/main.2.myappname.obb</p>
  
  <p>I assumed this obb file would be extracted on assets or raw folder or 
  something similiar. The obb file was renamed after I zipped about 20 .mp3
  files. They are named like so: 1.mp3, 2.mp3 etc.</p>
  
  <p>Is it possible to extract the obb file if not how will I be able to 
  access the invididual mp3 files, the way I am able to access them from
  assets or raw folder. Let's say I want to access 1.mp3 which is present
  on the .zip archive that was renamed to main.2.myappname.obb</p>
  
  <p>Thank you.</p>