Points of Interest (POI) files may be imported into a GPS device from your computer via the GPS manufacturer's software when the GPS device is hooked into a computer.
Garmin users can download the CSV files for import into their Garmin GPS devices using POI Loader.
Download POI Loader from the Garmin.com website with the following guide:
If you need a file for your Magellan GPS please use the CSV file and Magellan GPS Software for importing the POI files data.
If you own a TomTom simply connect it to your computer and click the button or download the OV2 file for the locations you are interested in.