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Basic information about CDO file

When there is a problem with opening files with the file extension CDO（*.CDO or *.cdo）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the CDO file yourself.

There are 1 file types using the CDO file extension in our database. In the further part of this page, you will find detail information about all the CDO file with their brief description and a list of programs that support CDO file sorted by operating systems. The table below provides useful information about the CDO file extension. It answers questions such as:
  • What is the CDO file?
  • How to open a CDO file?
  • What programs do I need to open a CDO file?
  • What programs help to create and edit a CDO file?
  • How to convert CDO files to another file format?
  • How to convert another files to CDO file format?


1.Detail information about CDO file extension: Crescendo Music Notation File

File type Crescendo Music Notation File Category Audio Files
Developer NCH Software File format Binary
Description CDO file is a Crescendo Music Notation File developed by NCH Software. Music file created by Crescendo Music Notation Editor, a program used for writing musical scores; includes the meter, musical notes, and page layout information for the sheet music; used for saving musical compositions and arrangements.
Software programs that will open, edit or convert CDO files

Windows		 NCH Crescendo Music Notation Editor



How to convert CDO files to another file format?

There are 2 records in our database eligible for CDO files to another file format conversion. If you want to achieve CDO to another files conversion, you may use the option.

CDO to MID CDO to MIDI


Can't open a CDO file?

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

”Can't open this file: example.CDO”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the CDO extension without any issue.


Where I can download the application that support CDO file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of CDO files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a CDO file?

The reasons for the lack of the ability to open a CDO file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a CDO file. If there is still something wrong, you might want to check:

  • Whether the CDO file is damaged.
  • Whether the CDO file is incorrectly linked in the registry entries.
  • Whether the CDO file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the CDO file format is incompletely.
  • Whether the CDO file is infected.
  • Whether the drivers of the equipment used for opening a CDO file are up to date.
  • Whether your computer has enough hardware resources to open a CDO file.

If the CDO file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.