An Excel macro is a set of programming instructions written in VBA (Visual Basic for Applications) that automate a repeated and standardized process in Excel and other Microsoft Office applications. Macros are an action or a set of actions that can be recorded, named, saved, and executed as many times as required and whenever desired. When you create a macro, you are recording your mouse clicks and keystrokes. Macros can be used to automate repetitive tasks associated with data manipulation and data reporting that must be accomplished repeatedly.
To create a macro, you can record it by performing the desired actions in Excel, and Excel will translate your actions into VBA code under the hood. You can also write macros manually in VBA code. Once you have created a macro, you can run it as many times as you want, and you can also assign a shortcut key or create a button to run the macro.
Overall, Excel macros are a useful tool for automating repetitive tasks in Excel and other Microsoft Office applications, saving time and effort.