Macros are instructions that automate a process. If a process of continuously repeating the simplest is to make a macro that one record and later can be used whenever we need. In Excel macros are written using a version of Visual Basic (VBA = Visual Basic for Applications). VBA is a standard language for more Microsoft’s products, and the principles you learn in Excel, you can apply to other programs in the Microsoft Office suite (Word, PowerPoint, …). Knowing macros become more efficient because complex business tasks can be done with just a click.