To connect to a dataset, select Get Data (at the bottom of the navigation bar) or select the plus icon next to the Datasets heading. Follow the instructions to connect to the specific source and add the dataset to your workspace. New datasets are added to the left navigation bar and marked with a yellow asterisk. The work you do in Power BI does not change the underlying dataset.
Datasets can be refreshed, renamed, explored and removed. To explore a dataset, select it. What you're actually doing is opening the dataset in the report editor where you can really start digging into the data and creating visualizations. So, let's move on to the next topic -- reports.
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