Magellan
1 Unpack the file you have downloaded from POIplaza.
2 Using Magellan POI File Editor, an application that comes with your Magellan GPS create a folder named My POIs in My Documents. Save all downloaded Magellan POI files there.
3 Convert downloaded .csv to a .mgln data format with Magellan POI File Editor.
4 Go to Menu -> Navigation Options -> Configuration -> Custom POIs -> Select a POI File and select downloaded Magellan POI's.
5 Launch navigation.
Note: The POI may be displayed as an inaccessible location if the map you are using is not sufficiently detailed.