Greetings and my most cordial regards, first of all, I will introduce myself, my name is Adnan Chleiwit, I am Industrial Engineer with more than 6 years of experience, I have done great projects from the university (internships and theses) and nowadays in the sector Oil tanker of my country (PDVSA), and I use Excel for almost everything, by means of the elaboration of database with advanced formulas and functions of high level. Tell me what you require, send me the necessary information and we will start working. Thanks in advance.