these essays are intended for beginners, pointing out useful techniques. Some are for experienced programmers poking into previously unknown areas of MFC. Some are advanced techniques, highly specialized.
previously at http://anubis.dkuug.dk/jtc1/sc22/wg21/ , ISO/IEC JTC1/SC22/WG21 is the international standardization working group for the programming language C++.
is the file extension source. Here you'll find a collection of file extensions; many linked to the programs that created the files. This is the FILExt home page.
contains file format information on hundreds of different file types and all sorts of other useful programming information; algorithms, source code, specifications, etc.