ELFIO is a header-only C++ library intended for reading and generating files in the ELF binary format. It is used as a standalone library - it is not dependent on any other product or project. Adhering to ISO C++, it compiles on a wide variety of architectures and compilers. While written in C++, the library provides a C-language interface wrapper. The full library documentation can be found in "ELFIO - Tutorial and User Manual" at http://elfio.sourceforge.net/elfio.pdf.