My IMFL ride file got a little screwy when the volunteer hit start in T2. I want the file in Garmin Connect, but it wouldn't initially import for some weird reason. WKO+ imported the ride file just fine, and I managed to clean it up, trimming off all the dead space at the end. (which cannot be done in GC)

The problem is that I now can't export it into a format that works right with Garmin Connect. Well, I *can* export it as a GPX, but the heart rate data is gone.

So WKO+ supports exporting it as:
.wko, .csv (powertap format), .hrm (polar), .txt (SRM format - no heart rate), .pwx, or .gpx (no heart rate)

And Garmin Connect supports importing as:
.tcx, .gpx, or .fit

So I've been trying to convert between multiple formats, and every time, Garmin Connect just won't accept what I try to feed it. I've tried various online tools.

Does anyone have any ideas on how I could get this thing from WKO+ and into Garmin Connect with all the data fields?

Thanks.