I used your URL in a web browser and saw the list of files in that directory. I found the file and right-clicked on it and selected "copy link address". I paste the link in a web browser and the file opened up.
Here is that link:
As for downloading the file, there are a number of different techniques. The simplest is:
Dim Text = Await New HttpClient().GetStringAsync("http://www.votrecourse.com/medias/xml/Timetrial.csv")