This example displays retail sales data as an interactive 3D bar chart, showing product price, quantity, and tax values. The visualization uses the `d3-x3d` library to render bars in X3D, with D3 v5 handling the data processing and CSV loading from a GitHub-hosted file. The chart is built as a multi-series bar chart, where each product corresponds to a group of bars. The code initializes the chart with random data before replacing it with the actual retail sales dataset.