Files that contain the .cs file extension are files that contain source code. The source code in a .cs file has been written in the C# or C# .NET programming language.
C# is a programming language that is used to create a variety of .NET Framework applications. It is commonly created with the Microsoft Visual C# toolset. This toolset can be used to create XML services for .NET connected applications. The CS files are usually compiled by a csc.exe file.
The types of source code code that a CS file can contain may include source code for console applications, library files and GUI applications.
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