This is from the OP:
My son has solved my problem of transferring routes from S&T to the Garmin 2595. He gave me step-by-step procedures. They are: 1. Plug the GPS into computer, 2. Click on "Open Device to View Files", 3. Dbl. click on: "Internal Storage", 4. Dbl. click on: "GPX File Folder", 5. Open S&T Application, 6. Open "My Documents" (where I stored the completed routes), 7. Open the route to be exported, 8. Click: "Data" at top of screen then "Export to GPX File", 9. Name the route and click "Save", 10. Go to Documents and click on the route to be exported and pull to the GPX folder. Note: the doc file and GPX file needs to be side by side for that last procedure.
Hope the above is helpful to someone. I know it seems like a lot of work but it goes quickly and works!
Thanks to all who responded (and especially to my computer guru son).
Larry