Save and load data from an array into a binary file (without an extension), as well as a file with the .txt extension.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/28868069-saving-data-in-ios/lessons/6
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/28868069-saving-data-in-ios/lessons/6