Extracting the content of a ZIP file is really common. And here is a simple example of how to do it with C# using ZipFile and SharpZipLib.

If you are using .Net Framework 4.6.0 or up you can use System.IO.Compression.ZipFile from Microsoft. But if you are lower than 4.6 then you can use SharpZipLib from ICSharpCode (both are available on NuGet).

ZipFile

SharpZipLib

Happy coding! 🙂