excel-xll

Calling Excel/DLL/XLL functions from C#

Hello, I have a particular function in an Excel addin(xll). The addin is proprietary and we do not have access to the source code. However we need to call some functions contained within the addin and we would like to call it from a C# program. Currently, I was thinking of writing a C++ interface calling the Excel function with xlopers,...

Running an XLL outside Excel?

I know this question has been posted before... but I haven't found any answer yet (besides from the generic answers about how XLL are actually DLL, etc). Has anybody out there been successful calling a XLL from say C# (using DllImport) without having to load Excel with the XLL loaded as an addin? Basically, you would have to create a sp...