There’s a lot going on in that Insert tab. Excel’s existing PivotTable feature allows you to create tables that summarise important points within a larger set of data, such as iPhone sales in particular regions, or particular quarterly periods.
The Insert tab now provides an extension of this feature, called PivotTable Slicers (which have been available in the Windows version of Excel since about 2010).
Slicers allow you to create a kind of interactive filter for your data. So, in Apple’s iPhone sales figures, you could click on a button over on one side of the spreadsheet that instantly showed the sales in one region or one quarter, rather than having to generate an entirely new table each time you wanted to look at that data.