A CBP file is a project file created and used by Code::Blocks, a popular free, open-source, and cross-platform Integrated Development Environment (IDE) designed specifically for C, C++, and Fortran development. The file is saved in an XML-based format, which makes it both machine-readable for the IDE and human-readable for developers who may need to inspect it manually. It serves as a configuration container that stores all the essential information required to manage and build a software project. This includes references to source code files, header files, and resource scripts, as well as specific compiler settings, linker flags, build targets like Debug or Release, and custom build steps. Because the CBP file uses relative or absolute paths to point to the actual source code, it does not contain the code itself but rather acts as a roadmap for the IDE to organize the project structure. It is a vital component for maintaining consistency across different development machines and ensuring that the build process remains reproducible across supported operating systems like Windows, Linux, and macOS.