Having problems opening a CS file?

We have programs that can open or convert your CS files.

Opening CS files

Did your computer fail to open a CS file? We explain what CS files are and recommend software that we know can open or convert your CS files.

What is a CS file?

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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Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension CS

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the CS file format or software that uses files with the CS suffix, please do get in touch - we would love hearing from you.