Excel Plain Reader & Generate a New Plain

Hello, I would like to build a small software that read plain A (5 colums), read plain B (5 colums), sum some data and generate plain 3. The join is made by "codigo produto" column. I prepare below more explanations about it: Legend: codigo = cod product produto = product vendas = sells valor = value estoque = stock preco unitario = unit price Plain A (seller plain anexx) - Read colums codigo, produto, vendas, valor Plain B (inventory plain anexx) - Read colums codigo, estoque, preco unitario Plain C (generated by your software, i anexx a example generated manually) The Join is made by column "Codigo" Write cod, produto, vendas, valor, estoque, preco unitario (sum) (sum) (sum) (average) Order by vendas (sells) desc How we can build it? 1- Submit plain A and plain B 2- Software read A, read B, execute sum on "vendas", "valor", "estoque" and average "preco unitario" 3- Software output a new plain (C) like anexx PLAIN C