Hello, today's windsurfing activity was either deleted or discarded and I couldn't find it on the watch. I connected it to my pc, found the .fit file from today's activity and when I tried to import it back on my watch I got this message "We don't support the file type you tried to import.". I tried to fix the file with this tool http://garmin.kiesewetter.nl/ but I couldn't fix it.
Can someone help me fix the file, if possible, please?
Thank you in advance for your help.
