The Venn visualization lets you drag in up to 3 filters and one metric (from the Components panel) to build a Venn diagram.
You can hover over the filters to gain more insight into percentages, and more.
To generate a Freeform table from the Venn visualization, select the colored next to the Venn header and select Show data source. You will see a Venn Data Freeform table with the data used to create the Venn visualization.