The instructions to send your workout to your gizmo would be the same as to send to Garmin Connect…
(Edit; - everything above here in my post is wrong, it’s pointed out this is instruction for completed workouts, not the preworkout file. IF you can get a workout file though, the steps below to put it on your garmin still apply)
… you’ll just be placing the fit file directly on your device via usb instead:
- Download the workout file (skip down to “Obtaining the .fit Workout File”)
- Plug in device via USB. Your device should appear as a drive in your operating system’s file manager
- Open Garmin device folder
- Open NewFiles
- Copy your .FIT workouts file(s) into the NewFiles folder. Note: some devices may require you to place the file directly in the “Workouts” folder.
- Eject device
- You should see your workout under the workout under Training > Workouts> Workout Title. If you don’t see it immediately you may need to restart your device.