When creating a C# application (which is a project in Visual Studio), such as a C# console applicaiton, a .csproj file that corresponds to such C# C# application (which is a project in Visual Studio) is created.
According to What are Visual Studio solutions & projects? - Visual Studio (Windows)
When you create an app or website in Visual Studio, you start with a project. In a logical sense, a project contains all files that are compiled into an executable, library, or website. Those files can include source code, icons, images, data files, and so on.
Seeing as how a C# project / .csproj file is a container for file(s) (relevant to such project), as stated in the above excerpt, is it possible to extract the file(s) stored within a .csproj file?