Question cancelled. I think I need to do more reading, I am becoming more confused by reading Googles instructions. I will find a new question.
Regards Roger
Hi All
I have been getting Elevation data from google maps without an API key but it has very limited number of requests per day. I now have generated an API key but can't find how to use it in the URL string. Below is my final attempt, I have not shown the API key [security] but be assured I have included it in my attempt.