CXX file format description

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

1 filename extension(s) found in our database.

.c++ - C++ Source Code

The C++ development files are related to Microsoft Visual Studio. The C++ file is a C++ Source Code. C++ is a general-purpose programming language. It is a statically-typed free-form multi-paradigm language supporting procedural programming, data abstraction, object-oriented programming, and generic programming.

Microsoft Visual Studio
Development files
- / -
cc, cplusplus, cpp, cxx
C++ Source Code related extensions:
BYOB Sprite
Xcode Interface Builder Storyboard
ProWorx NXT Logic Pointer Data
ASIP Meister Data
Python Macro File

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

Can't open a .cxx 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 .cxx file extension is often given incorrectly!

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

cax, ccx, cdx, csx, cx, cxa, cxc, cxd, cxs, cxz, czx, dxx, sxx, vxx, xx

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

CorelDraw Clipart Data
CZIP X Encrypted ZIP Archive
FMAT Listmode Data
Bentley MicroStation Cell Library Index
MTFLOW Geometry Data
CorelDraw Compressed Drawing

Operating systems 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

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

If you have useful information about the .cxx file format, then write to us! >> CXX file