What is a macro in Excel?

A macro in Excel is a recorded sequence of commands that automates repetitive tasks. Macros allow users to record a series of actions, such as entering data, formatting cells, or applying formulas, and then replay them with a single click or shortcut. This functionality is particularly useful for saving time and ensuring consistency when performing the same operations multiple times.

By recording a macro, users can streamline their workflow and reduce the likelihood of human error that might occur when performing these actions manually. Once recorded, a macro can be saved and reused, making it a powerful tool for enhancing productivity in Excel.

The other options do not capture the essence of what a macro is. Formulas and functions are used for calculations and data analysis, tools for formatting cells focus solely on the visual aspect of data representation, and functions for creating charts address data visualization but do not encompass the automation capabilities provided by macros.