CO File

What are CO files and how to open them

Are you having problems opening a CO 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 CO file?

A .CO file is a Cult3D Object file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CO files

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

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

Last updated: November 27, 2013

Various apps that use files with this extension

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

Morpheus MusicMorpheus MusicUser submitted
P2P RocketP2P RocketUser submitted
Free Torrent ViewerFree Torrent ViewerUser submitted
dBASE PLUSdBASE PLUSUser submitted
MP3-XtremeMP3-XtremeUser submitted
Visual dBASEVisual dBASEUser submitted
Cobalt ShareCobalt ShareUser submitted
K-liteProK-liteProUser submitted
ShareZillaShareZillaUser submitted
Gnutella TurboGnutella TurboUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about CO file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.