title: How can I run a Xcode 7 playground on Xcode 6?
body: <p>I want to start learning Swift but I am not familiar with Xcode. On the developer apple site you can download a playground that you can use while learning from their book "The Swift Programming Language". But I use an older version of Xcode (v6.2), and the playground is made for version 7. Is there a way of opening the playground without upgrading to the latest version of Xcode? Thanks</p>