Originally Posted by Guy Byars[_2_]

informed that I need to choose an app to run the info. *My computer, a
MacBook Pro has no loaded app for this. *I searched for an app and one
was not available. *Can this not be done on a Mac? *What do I need to do
to see the tracking of individual gliders if possible?

Instead of clicking on the link, you should save the target file to
your computer. In this case it is a .zip archive file. Then you can
open the .zip file on your computer and extract the log files in .igc
format. Then, assuming you have an app installed to view igc files,
you can see the flights.