A Macros is an set of recorded operation which are used to overcome the sequence of steps to perform on the data. In object oriented programming language we are used some header files which are also in the form of Macros. In Macros automated input sequence that imitates keystrokes or mouse actions. A Macros is typically used to replace a repetitive series of keyboard and mouse actions and are common in spreadsheet and word processing applications like MS Excel and MS Word. The file extension of a Macros is commonly. Macros can be used to make certain tasks less repetitive by representing a complicated sequence of keystrokes, mouse movements, commands, or other types of input.