Opening CDU Files

The CDU file type is primarily associated with CDU Paint.

CDU	File extension: CDU
	File type:	CDU Paint files

What is a CDU file?

CDU files mostly belong to CDU Paint. Use our "Online CDU File Viewer" below to open and view your CDU file directly in your browser.

How to open CDU files

You need a suitable software like CDU Paint to open a CDU file. You need a suitable software like CDU Paint to open a CDU file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CDU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CDU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CDU File Viewer

Choose your .cdu file to view this image

or drag and drop it here

Online File Viewer

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How to extract texts from CDU files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

You can extract texts from CDU file or capture a preview screenshot using our online CDU file viewer:

To do this, click the button "Choose your .cdu file to view this image" on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Trouble Opening a .CDU File? These Steps Will Help

Because .CDU files can come from different programs, they aren't universally openable.

Identify the Source: Files from digital artists suggest a CDU Paint image, while aviation simulator files may be Control Display Unit data.
Check the Header: Inspect the first bytes in a text or hex editor:
- "PK" indicates a ZIP archive.
- Readable XML/JSON suggests configuration data.
- Scrambled text implies a proprietary binary format.
Use the Original Software: The original program is usually required; try CDU Paint, flight simulation tools, or ask the sender if uncertain.
Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for CDU File Extension

Related files:

cdu3, cdr, pal

Related links:

XnView

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: GraphicsConverterPro.cdu, FileType: CDU Paint, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: XnView.Image
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

a cdu CDU Paint file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with CDU files

Associate the CDU file extension with the correct application.
Update your software that should actually open CDU Paint files. Because only the current version supports the latest CDU file format. Search, therefore, e.g. on the manufacturer website after an available CDU Paint update.
To make sure that your CDU file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CDU file online - secure, fast, and no downloads needed.