File extension .CS
Full Name | Developer | Category |
---|---|---|
Microsoft Visual Studio Visual C#.NET Source Format | Microsoft | Developer Files |
The CS (Visual C# Source Code File) file extension is also known as a C Sharp file. A CS file is the source code of a program written in the C# programming language. It used to be created in programs such as Microsoft Visual Studio, and is often seen in web development due to the popularity of the ASP.NET framework. It is related to the similar .VB file, which is created by Visual Basic.
A C Sharp file contains definitions, classes, variables, and other basic functions that help applications run on devices powered by Android Operating system. It can be written directly in any basic text editor such as Notepad++ or
Atom. However, for programming beginner who wish to learn the concepts of coding, it is recommended to use a dedicated application such as Microsoft Visual Studio or MonoDevelop.
How To Open A CS File?
In order to open a CS file, you must have any version of Microsoft Visual Studio or any source code editor installed prior to accessing the file. You may also open it using an application like MonoDevelop IDE, Microsoft Notepad, Atom, or even Visual Studio Code. Simply double click on your desired.CS file and it will open up automatically.
Similar File Extensions
File extensions similar to CS are: .BAS, .C, .CPP, .HPP, .JAVA, .PAS, and .VB.
Programs for WINDOWS system
Programs for MAC system
Programs for LINUX system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .CS) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .CS extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .CS file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .CS extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .CS extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .CS file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .CS file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .CS file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .CS file) will be extended to the maximum.
It is also good to check
- if the .CS file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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