Hello Client,
I have gone through all your requirements . I am an excel vba and macro expert.
I have done created many add ins and macro for local clients and even clones like VLOOKUP, SUMPRODUCT,REMOVEDUPLICATES, etc.
I dont know why they need them but i have done it for them.
I can also provide you the same.
it will be a great pleasure in working with you.
thanks for your time and consideration