This operation requires advance Pastel financial and account knowledge. The first thing to do is to use the built-in tutorial to learn how to use the software then attempt to do it with sample companies. Usually the data you enter in Pastel is vital to companies and you can't afford mistakes, that's why is best to use sample companies first. You can also use Google for tutorials on how to work with the software. Once you understand the software and the way it works, you can use the real data from companies.