Below is a video on how to use all of the icons on the Data Ribbon. If you scroll down below the video, you can get clickable quick access to each of the icon explanations in the video shown below.

0:00 Data Ribbon Icons

0:05 Get Data Icons

2:29 Refresh Icon

2:39 Queries and Connections Icon

3:25 Sort Data Icon

5:15 Filter Icon

6:40 Flash Fill Icon

6:56 Data Validation Icon

9:00 What-if Analysis Icon

21:55 Group and Ungroup Icons