Hi Matthew,
As I'm not sure if you're using Insights for ArcGIS Online or the ArcGIS Enterprise version, I'll add this for everyone who's interested in both the platforms. This can be done in a 2 step process:
1.) You can share your work as datasets in Insights:
Share your data—Sharing in Insights | ArcGIS
Share your work—Insights web help Use tab | ArcGIS Enterprise
In both ArcGIS Online & Enterprise, running spatial aggregation doesn't cost credits.
2.) Once a feature layer item is created in your ArcGIS Online & Enterprise content directory, you can then export your feature layer to a file in order to use it outside of the ArcGIS platform:
Manage hosted feature layers—ArcGIS Online Help | ArcGIS - You can export a feature layer to (CSV) file, Microsoft Excel file, shapefile, file geodatabase feature class, GeoJSON file, feature collection, or KML.
Manage hosted feature layers—Portal for ArcGIS | ArcGIS Enterprise - You can export to (CSV) file, shapefile, file geodatabase feature class, GeoJSON file, or feature collection at the moment. (Excel file will be available in ArcGIS Enterprise 10.6).
Hope this is what you were asking for!
Thanks,
Aravind
