CCO file format description

Many people often share .cco files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .cco files. To address this issue, we have created this page to offer assistance and guidance on handling .cco files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .cco files.

Our aim is to simplify the process and promote seamless use of the .cco file format.

2 filename extension(s) found in our database.

.cco - CodeCheck Object File

The CCO development files are related to CodeCheck. The CCO file is a CodeCheck Object File. CodeCheck is a tool for programmers which detects violations of standards for C++ source code.

Development files
- / -
CodeCheck Object File related extensions:
Data Explorer Information
BETA Source Code
Xcode Project User Data
Alpha Five Table Data
Y86 Assembler Object
PLCEdit Program Organization Unit

.cco - Apple Cocoa Data

The CCO development files are related to Apple Cocoa. The CCO file is a Apple Cocoa Data. Cocoa is Apple's native object-oriented application programming interface (API) for its desktop operating system macOS.

Apple Cocoa
Development files
- / -
Apple Cocoa Data related extensions:
Ovation Pro for RISC OS Document
RPG Maker VX RGSS Encrypted Archive
Turbo Pascal Compressed Kepler Data
Babylon.js Scene
Valve Source Mesh Strip Data
Motion Description Language Extended Data

Naturally, other applications may also use the .cco file extension. Even harmful programs can create .cco files. Be especially cautious with .cco files coming from an unknown source!

Can't open a .cco file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cco file extension is often given incorrectly!

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. By providing this list, we aim to assist users in finding the correct information more easily and improving their overall search experience on our site.

These misspellings were the most common in the past year:

cc, cci, cck, ccl, ccp, cdo, cfo, co, coc, cso, cxo, dco, fco, sco, vco

Is it possible that the filename extension is misspelled?

There is a possibility that the .cco filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .cco:

KODAK Camera Color Control Profile
BibExcel Co-occurrence Document
CADAM Overlay Data
CSound Score Data
CodeCharge Studio Page
Fiasco Compressed Video

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .cco file format, then write to us! >> CCO file