I have found that one of the files has got 377kb so I renamed it like original file and it has opened a window with the following message.
<?xml version="1.0" encoding="UTF-8"?>
<gpx xmlns

pencpn="http://www.opencpn.org" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd" xmlns:gpxx="http://www.garmin.com/xmlschemas/GpxExtensions/v3" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" creator="OpenCPN" version="1.1"/>
But I have tried to put that into the location into program data file again and it still will not show my tracks/routes.
Thanks Till