Would be great to be able to directly load and display GML contents in AGO.
Specifically the points (or line/polys) contained within that file. [see <gml:posList> ]
We could write scripts to do this extraction, or we could use FME or Data InterOp or ArcMap to convert the file - but having this as a directly supported file format adds efficiency to AGO.
20604214667000_MGAGDA94Z55.GML.zip
14667000_MGAGDA94Z55.GML.zip