Morefunc
This add-in, written in C++ (not VBA) is no longer maintained by Laurent Longre.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.
Publisher's Description
From Laurent Longre:
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.
