Features file

A Features file contains geometric information (points, polygons) for representing data. It may be in GeoJSON or TopoJSON format. It does not contain actual values, those come from a Data file. It must however contain unique id properties for the features, which are used to match data rows with features.

You can upload features files to DropBox and share them, upload them to a CDN, or publish them on your own server. Note that features files must be served with a permissive CORS policy, otherwise the browser will refuse to load them.