A CS file is a source code file written in C#, the object-oriented programming language developed by Microsoft. These files include programming instructions which, when compiled, form part of a software application.
You can use CS files for creating various types of software, including Windows desktop applications and web services. Businesses commonly employ them for their backend infrastructure, building robust and scalable systems.
Several applications can open CS files. Notable among them is Microsoft's Visual Studio, a comprehensive development environment that offers various tools for programmers. Another viable option is MonoDevelop, a cross-platform C# development environment.
But, you can open a .cs file using any text editor like Notepad, Notepad++, or Sublime Text because .cs files are just regular text files.
Here are some file types which are related to CS files: