Regarding your answer, it is understood that a XLAM is not the solution.

I want to turn a VBA module of math., with no reference to Excel objects, in a compiled Add-in, quick, safe and simpler to deploy.

• Keeping in mind that I don't want to automate Excel objects, but only subroutines for numeric calculations, I would like to know if it is preferable a COM, a DLL or something else.

• I would like to know also if it is really necessary to compile with VB (as for example I read that you can create COM files in a simpler way, with VBA).

I hope that it is clearer now.
Finally, I would be grateful if you could also advise me documents on what you feel is the best procedure for my target.

Thanks and regards.