C File Type

- The quick facts

What are C files and how to open them

Are you having problems opening a C file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a C file?

Files that contain the .c file extension normally contain source code that has been written for C or C++ programs. The C file may contain the source code for an entire program or a single source file that is to be referenced within a specific programming project.

The C programming language was developed as a general-purpose computer language by Dennis Ritchie. It was originally intended to be used for Unix operating systems. In 1983 the C++ programming language was developed by Bjarne Stroustrup as an enhancement to the original C language. Both the C and C+++ languages are two of the most widely-used programming languages in use today.

How to open C files

Important: Different programs may use files with the C file extension for different purposes, so unless you are sure which format your C file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different C openers which you will find listed below.

Last updated: October 5, 2021

Suggest another file format using extension C

While we know of one file format using the .C file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .C file.

Various apps that use files with this extension

These apps are known to open certain types of C files. Remember, different programs may use C files for different purposes, so you may need to try out a few of them to be able to open your specific file.

CodeBlocksCodeBlocksUser submitted
Dev-C++Dev-C++User submitted
UltraEditUltraEditUser submitted
Stuffit ExpanderStuffit ExpanderUser submitted
Atmel StudioAtmel StudioUser submitted
Code::BlocksCode::BlocksUser submitted
Any Video Converter ProfessionalAny Video Converter ProfessionalUser submitted
Borland C++Borland C++User submitted
Edge Code CCEdge Code CCUser submitted
jGRASPjGRASPUser submitted
We have not verified any software that we know for certain will work with C-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with C-files. If you know one, please use the 'Suggest a program' link below and tell us about it!