I'm new to the OLC & have had several flights rejected. Reason given:

IGC-file cannot be read or has wrong format! Please send the file via
http://www.onlinecontest.org/olc-2.0/gliding/help.html
Error by parsing IGC-File; For input string: "u78"

Flights were downloaded from a 302 & attempted to upload to OLC using
SeeYou. Any suggestions pls?
Thanks, Bill