Add a layer from file" ... using coordinates, where is the file format documented, with an example?
Hi Heidi Ziegler
For the file:
Go to Add layers to maps—Portal for ArcGIS | Documentation for ArcGIS Enterprise (Portal), Add layers to maps—ArcGIS Online Help | Documentation (ArcGIS Online).
"You can add layers to your map by importing data you have stored in a delimited text file (.csv or .txt), GPS Exchange Format file (.gpx), GeoJSON file (.geojson or .json), or shapefile (compressed into a .zip file). "
For the formatting:
CSV, TXT, and GPX files—Portal for ArcGIS | Documentation for ArcGIS Enterprise
Shane