ok i had the same problem one month ago
From Garmin 2010 to my C80)
first i tried transferring them via NMEA ( i have 2000 points so typing is not an option) DID NOT WORK
OK lets use the excel sheet. When u copy from mapsoures to the ray-excel the garmin will put the lat/long in one cell and the ray will only take it in separate cells. DID NOT WORK
Ok lets download the free Raytech 5.0. DID NOT WORK.
OK upgrade to the Raytech Planner a 124 MB program grate tool but it DID NOT WORK
SO JUST START TYPING FRIEND , in one month i only finished 300wp
i will see the link a let u know, for now if anybody can help pleasssssssssss do