David Leonard wrote:
That bunch of stuff appended to the file is the whole *.cai file,
including the security record, encoded into ascii text (base-64?).
Just
upload it to the OLC.

Wilco.

As an aside, I actually went to the FAI site and downloaded the zip
file containing various CAI DOS utilities (conv-cam) which converts to
..igc format. It definitely creates a short G Record that looks "right"
(ie a couple of lines); anybody know if this utility creates a file
that passes muster with the OLC.