How to use Excel Add-in ( Compiler Ex Builder) to convert several connected function from Matlab in one function call in Excel?

Hi, I'm trying to export a set of functions created in Matlab for Excel. I managed to make the export for one function. But my total function has 5 sub-functions and I tried with functions in separate files and written in the same file. No luck so far.

I implemented the function in a macro and I can see that for the case with more then one function when is about to call the function it fails to return with results. For the single function case I got results.

Can anyone help me with some hints?