Open CXX files with File Viewer Plus

CXX file open in File Viewer Plus 3
A C++ Source Code File open in File Viewer Plus 3

Do you need to open a C++ source code file (.CXX file)?

File Viewer Plus can open CXX files! It comes with helpful viewing options, such as a syntax tree view and line numbers for navigating the source code. The program can also edit the source code and save the CXX file.

Open, edit, and save CXX files with our easy-to-use program. Try File Viewer Plus today!

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What is a .CXX file?

cxx file icon

A CXX file is used to store source code for a C++ program. It may include all the source code for a program in a single file or may be one of many source files referenced within a project. C++ is a common programming language used to develop many types of applications, including games, database software, GUI-based applications, web browsers, compilers, and even operating systems.

While CPP files are more often used to save C++ source code, CXX files are still common among programmers. File Viewer Plus can be used to open and edit CXX files and provides various viewing features, including a syntax tree view, word wrap, code folding, ruler, and line numbers. After modifying the source code, File Viewer Plus can save CXX files.

Learn more about CXX files at

File Viewer Plus CXX Support

Batch Convert

Conversion options:
RTF, Plain text

About File Viewer Plus

File Viewer Plus is a universal file viewer for Windows. Why pay for many software programs and clutter your PC when you only need one? File Viewer Plus supports over 300 file types. No longer do you need to buy extra software or install shady programs to open unknown or unique file types. File Viewer Plus also enables you to edit, save, print, and quickly convert your files.

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