The attached map below shows canals and watershed in the ArcGIS online map viewer but once I download the file the show up in the contents panel but not on the map.
https://wustl.maps.arcgis.com/home/item.html?id=d882fd33c2674a3d814be0a99e62c592
Greetings @KaitlinSampson
When I visit the Item page for the service, I can see that only one of the layers "Áreas potenciales de compesación (etapa 1)" is public, so it could be added to a map using its URL:
https://services3.arcgis.com/lJPpeQVgQ9Gdmm11/arcgis/rest/services/Areas_potenciales_de_compensacion....
However, all others are private and not accessible except through the link provided.
When you say "... once I download the file ..." would you please describe what you mean by this?