CPJ file format description

CPJ file format

We made this page to help you understand how to work with CPJ files. Here, you can find info on software that can handle these files. It includes simple programs for opening and converting them.

Learn about the CPJ file and its functions here!

We also explain how to convert them into other types. It's simple and hassle-free. For opening or changing CPJ files, this page offers all the tools you need.

#1 WinOnCD Project

The CPJ file is categorized under Project. It is associated with Roxio Creator, serving as a WinOnCD Project. WinOnCD is a CD writing package from CeQuadrat. It contains an audio editor, and some useful audio restoration software. Visit the website of Roxio Creator for a detailed description of the CPJ format.

Application:Roxio Creator
Category:Project files
Magic:- / -

WinOnCD Project related extensions

  • xmk Crossware Embedded Development Studio Project
  • mproj Mine-imator Project
  • had HiBeam Screen Builder Project
  • sfg Synfig Studio Compressed Project

#2 CUDA Project

The CPJ file is categorized under Development. It is associated with Nvidia CUDA Toolkit, serving as a CUDA Project. CUDA is a parallel computing platform and programming model created by NVIDIA and implemented by the graphics processing units (GPUs) that they produce. Visit the website of Nvidia CUDA Toolkit for a detailed description of the CPJ format.

Application:Nvidia CUDA Toolkit
Category:Development files
Magic:- / -

CUDA Project related extensions

  • pko Packo Package
  • xcss RichFaces XCSS File
  • oca Visual Basic Control TypeLib Cache
  • cso High Level Shader Language Compiled Bytecode

Did someone accidentally misspell the CPJ filename?

The CPJ filename extension may be misspelled. We compiled a list of similar file extensions to help you find errors.

Filename extensions similar to CPJ:

Windows can't open your CPJ file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this CPJ file.

To set the CPJ file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set CPJ file association. Many apps can open files. They don't need a specific file association to be set.

Handle CPJ files with care

Exercise caution when handling CPJ files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar CPJ files. Use trusted antivirus software to scan files from unknown sources before opening.

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