Access local files asynchronously

Learn how to manage local files using the System.IO namespace and how to asynchronously back up and restore application data using the System.Text.Json namespace. 

Prerequisites

• An installation of Visual Studio Code with the C# Dev Kit extension installed.
• The ability to develop object-oriented programs in C# that implement classes, interfaces, class inheritance, and polymorphic behavior.
• The ability to manage collections, structs, records, generics, dates and times, and anonymous types.

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