What is the purpose of the insert chart button?

The purpose of the insert chart button is to insert charts into a spreadsheet and customize them. Charts are essential tools for visualizing data, as they help to represent numerical values in a graphical format, making it easier to identify trends, patterns, and comparisons. By using the insert chart button, users can select various types of charts, such as bar charts, line charts, or pie charts, and then modify their design elements like colors, labels, and titles to suit their needs, which ultimately aids in data presentation and analysis.

Other functionalities like formatting cells, calculating sums, or changing text fonts serve different purposes in spreadsheet applications and do not involve creating or customizing visual data presentations, which is the core function of the insert chart button.