We use documents to store and organize data in the apps that we use.
This is a simple description of how and why we use documents with mobile apps built with macOS and iOS. There’s much more than this simple description to consider when you start working with documents, and this chapter goes into the basic details you need to consider. You can find many books and articles dealing with documents, but the key points are described here.
Describing a Document
When you use an app, you sometimes need to store data for the app (that’s the basic description just mentioned). ...
