These are files from the Edge 1000, with firmware version 2.20.

The files are paired to the following devices:

1) Garmin Vector Power Meter
2) Garmin Speed-Only Magnetless Sensor
3) Garmin Cadence-Only Magnetless Sensor
4) ANT+ Heart Rate Strap
5) Garmin Edge Remote
6) Shimano Di2 system

On the June 1st file, it's also paired to the Garmin VIRB.