Exporting Apple Workouts (NOT HEALTH) data to excel

Hi. I'm a fairly serious runner and need to analyze my Apple Watch/Workout (not Health) data in much more detail than is available on the phone. For example, I use the Heart Rate Zones extensively for training, and need to be able to see total Zone 2 time over a week, month, and entire training period. I also need to see trends over time, including how my Zones correlate with my pace/vice versa. I could easily do this in Excel, but I don't see a straightforward way to export the data (.csv or otherwise). I do see the "export all Health Data" option but I don't need all of that - just workouts. Help!