Help Creating XLL

[Justin Starnes]

Where can I find an example or help creating an XLL? I'd like to create an
add-in that allows new Excel formulas.

 

[Jerry W. Lewis]

Here are a couple of articles that you may find useful

HOWTO: Build an Add-in (XLL) for Excel Using Visual C++
http://support.microsoft.com/default.aspx?scid=kb;en-us;178474

XLL A library for creating high performance Excel add-ins
http://xll.sourceforge.net