Editors' Note: This add-in, written in C++ (not VBA) is no longer maintained by Laurent Longre. You can use it freely but the code is protected.
A free library of 66 new worksheet functions for Excel 95 or above, written in C++, covering many categories : text, maths, statistical, information, lookup and matrix functions. For instance : INDIRECT.EXT (an INDIRECT-like function working with closed workbooks), NBTEXT (spells out numbers in 13 different languages), VSORT (sorts an array with up to 14 sort keys) and so on.
What's new in this version:
Version 5 adds compatibility with Excel 2007. It still works in the 32-bit versions of Excel 2010 and 2013 but not in 64-bit versions.