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Navigation: Home > CDO file

Informations about the CDO filename extension and the file formats associated with it

We collected the information you should know about the .cdo filename on this page. If you were sent a(n) .cdo file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.cdo - Crescendo Music Notation

The CDO file is a Document file, which is connected to the Crescendo Music Notation according to our registry. With the adequate settings, the Crescendo Music Notation (.cdo) files can be opened or converted with the help of Crescendo Music Notation Software.

Format description:
CDO format
Crescendo Music Notation Software
Magic string:
- / -
Related links:
Related extensions:
Pegasus Mail Outgoing Final Message
Pixie Document
Calendar Creator v2 Document
Binary Lasergraphics Language Document
FlagMaker Document
WordStar 2000 Document

Important! Programs other than the ones listed above may also use the .cdo file extension. Even harmful programs can create files with the .cdo extension to store data in them. Always be careful with .cdo files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .cdo file can’t be opened on your computer?

If the program necessary for opening the .cdo file is installed properly on your computer, then the quickest and simplest way to open the .cdo file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .cdo file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .cdo extension

The .cdo filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .cdo files.

fdo, cco, ddo, cxo, cro, co, ceo, cdl, xdo, cdi, sdo, cd, do, dco, cso

Maybe you’re not even looking for the .cdo file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .cdo extension. It’s possible that the one you’re looking for is among them.

CodeCheck Object File
Safetica Free Encrypted Virtual Disk Archive
Microsoft C Compiler Output
Common Data Form Language File
Oracle BI Publisher Report Definition
Steinberg WaveLab Basic Audio CD Project

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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