title: Edit a file in AppData folder using JavaScript
body: <p>I wish to create/read/write/append to a file from a webpage created using HTML5, Javascript and CSS3. I need to do all this activity only in JavaScript. </p>
  
  <pre><code>"isFile": true,
  "isDirectory": false,
  "name": "readme.txt",
  "fullPath": "file:///C:/Users/devarumc/AppData/Local/Packages/io.cordova.hellocordova_bzbj8h50hftv4/LocalState/readme.txt"
  </code></pre>
  
  <p>Is it possible to achieve this?
  If yes, what would be the best strategy to achieve it? 
  The requirement is edit the data in the above mentioned readme.txt file.</p>