A: 1. Not right now, but it's on the roadmap: Google Sheets, CSV, JSON, Baserow.io, Infinity.

2. In the future there will be heatmap chart and treemap chart, if you want map of countries there are no plans for now.

3. Right now you can embed multiple charts on Notion pages (using it as a dashboard) or any website. In the future you will be able to create dashboards with your charts in the tool itself, but for now it is not a priority.