Easiest way to get a hiking trail onto my fenix 5?

I usually use Hiking Project to look up trails but the source doesn't really matter.  What is the easiest way to save a downloaded gpx onto my pc so I can copy or import it onto my Fenix 5x?

I have Basecamp downloaded but I am not wanting to create a route from clicking the start or finish. I have the GPX file in a work doc or note and I want to copy that into basecamp or through Garmin Connect on my phone.  Many times I am using a GPX file which isn't from a website and all I have is the text of it and I need a way to get that onto my watch.

Any help?