What is the main function of a slicer in Excel data tables?

The main function of a slicer in Excel data tables is to filter data visually. Slicers provide a user-friendly interface that allows users to filter data in a table or PivotTable by clicking on buttons representing different categories or values. This visual representation makes it easier to analyze and interact with data, as users can quickly see the available options and apply filters in a more intuitive manner compared to traditional dropdown menus or filter options.

Slicers enhance the interactivity of data presentations, allowing users to make selections that instantly update the displayed data. This dynamic filtering capability is particularly useful when dealing with extensive datasets, as it simplifies the process of isolating specific information for better insights.