.CC file extension

To open .CC files on Windows, right-click the .cc file → Open with → choose a code editor or IDE (a plain-text editor works if you just need to read it).

To open a .cc file, use a programming text editor or an IDE (for example on Windows/macOS/Linux). If you need to run it, compile it as C++ (for example with g++), rather than trying to “open” it like a document.

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Last updated: April 29, 2026 · Reviewed by Julian Stricker

Open on your device

Choose your operating system for a dedicated step-by-step opening guide.

How to open .CC files

Use these platform-specific instructions to open .CC files safely.

Windows

Right-click the .cc file → Open with → choose a code editor or IDE (a plain-text editor works if you just need to read it).
If you need to build it, use a C++ toolchain and compile it as C++ (for example with g++ in a developer command prompt or terminal).

Full Windows guide

Mac

Control-click the .cc file → Open With → choose a code editor/IDE (any plain-text editor can display it).
To run the program, compile it with a C++ compiler (for example g++) from Terminal.

Full Mac guide

Linux

Open the .cc file in a text editor/IDE from your file manager (Open With…); many desktops recognize it as C++ source (text/x-c++src).
To compile, run g++ on the file from a terminal (g++ treats .cc as C++ source by default).

Full Linux guide

iOS

iOS can usually display .cc as text in a code/text editor app; for compiling/building, transfer the file to a desktop system with a C++ toolchain.

Full iOS guide

Android

Android can usually display .cc as text in a code/text editor app; for compiling/building, transfer the file to a desktop system with a C++ toolchain.

Full Android guide

Security notes

.cc files are plain text, but they can still be risky if you compile and run code you did not review—treat untrusted source code like an untrusted program.
Be cautious with build scripts and compiler flags from third parties; the danger is usually in what you execute during the build/run process, not in “opening” the text.
If you host .cc files on a web server, configure the server’s Content-Type mappings intentionally (for example in Apache via mod_mime) to avoid unexpected handling by clients.

Recommended antivirus software

Scan files before opening them. These antivirus tools help protect against malware and viruses.

Avast

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Norton

Norton 360 delivers comprehensive antivirus protection, VPN, and identity theft monitoring. Scan files for threats before opening to keep your device secure.

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Can't open this file?

These are the most common causes and fixes when .CC files fail to open.

Common reasons

It opens in the wrong app (or shows as an unknown file type)
Compilation fails or the compiler treats it as the wrong language
Web server serves .cc with an unexpected Content-Type

Fix steps

Use “Open with…” and pick a text editor or IDE.
On Linux, ensure your environment uses the shared MIME database; .cc is commonly mapped to text/x-c++src there.

OS-specific troubleshooting

What is a .CC file?

.cc is a conventional filename suffix for C++ source code. Tools like GCC treat .cc as C++ input and will compile it accordingly. On many systems it is associated with the (non-IANA) MIME type text/x-c++src via the shared MIME database.

Background

In practice, .cc files are plain-text C++ source files used in software projects. Because they are text, they can be viewed and edited in many editors, and they work well with version control systems (diffs, merges, code review).

Common MIME types: text/x-c++src

Common .CC issues

It opens in the wrong app (or shows as an unknown file type)

File associations may not be set up, or your desktop environment may not recognize the extension/MIME mapping.

Use “Open with…” and pick a text editor or IDE.
On Linux, ensure your environment uses the shared MIME database; .cc is commonly mapped to text/x-c++src there.

Compilation fails or the compiler treats it as the wrong language

The build command or toolchain may be misconfigured, or you may be using the wrong compiler driver.

Compile using a C++ compiler driver such as g++ (GCC documents .cc as a C++ source suffix).
Check that the file really contains C++ (not C, C#, or something else) and that required headers/libraries are installed.

Web server serves .cc with an unexpected Content-Type

Servers often map extensions to Content-Type via configuration (for example Apache’s mime.types/TypesConfig). If misconfigured, browsers may download it or display it oddly.

Review your server’s extension-to-type mapping (for Apache, check mod_mime configuration and mime.types).
Prefer serving source files as a text type if your goal is safe viewing rather than execution/download behavior.

FAQ

Is a .cc file a “CC Document File”?

Most commonly, .cc refers to a C++ source code file. If you received it expecting a document, confirm the sender and context—don’t assume it is a word-processing document.

Can I open a .cc file in a normal text editor?

Yes. .cc is plain text source code, so any text editor can open it. An IDE/code editor will add syntax highlighting and project/build features.

What MIME type should .cc use?

Many systems use text/x-c++src for C++ source, but it is not an IANA-registered standard media type. Servers and desktops may differ based on their MIME databases and configuration.

Can I convert a .cc file by renaming it?

No. Renaming only changes the extension; it does not convert the content. If you need a different format (for example, HTML for viewing), use an export or code-to-documentation tool.

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