CPRJ file format description

Many people share .cprj files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cprj file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cprj files.

2 filename extension(s) found in our database.

.cprj - Cypress EZ-Click Project

The CPRJ project files are related to Cypress EZ-Click. The CPRJ file is a Cypress EZ-Click Project. EZ-Click is a simple and intuitive graphical user interface (GUI) used to configure the Cypress controllers.

Cypress EZ-Click
Project files
- / -
Cypress EZ-Click Project related extensions:
Moldex3D eDesign Project
VisionLab Studio Project
Gammadyne Mailer Project
K3b Disk Burning Project
GraphPad Prism 3 Project
TIA Portal v14 Project

.cprj - CMSIS-Build Project

The CPRJ project files are related to CMSIS-Build. The CPRJ file is a CMSIS-Build Project. The ARM Cortex Microcontroller Software Interface Standard (CMSIS) is a vendor-independent hardware abstraction layer for the Cortex-M processor series and specifies debugger interfaces. The CMSIS Project description format (CPRJ) is unifying the specification for the build of a software project.

Project files
- / -
CMSIS-Build Project related extensions:
Yaskawa MPE720 v7 Project
VideoReDo Project
Sublime Text Project
SignIQ Project
Cyberlink PhotoDirector Project
AAA Logo Project

Naturally, other applications may also use the .cprj file extension. Even harmful programs can create .cprj files. Be especially cautious with .cprj files coming from an unknown source!

Can't open a .cprj file?

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

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cprj file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cpj, cpr, dprj, prj, sprj, vprj, xprj

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

WinOnCD Project
Microsoft Application Virtualization Sequencer Project
Electric Quilt 3 Project
Cubase Project
Monarch Pro Project
ConTEXT Editor Project

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> CPRJ file