This plugin doesn't exist yet in C2.
Also, I'm not sure it will be, as Javascript is not supposed to give you access to the files of the user.
This might be workedaround using the webstorage plugin somehow, but files wouldn't be .ini format.
You also have the opportunity of using ajax, meaning your datas would be stored in a webhosted database, and your application calls a script through ajax that would return all the infos you need (and that are stored in the database).