You can import FIT and TCX files into PowerCenter. This can be helpful when using a Polar V800 watch, or when manipulating FIT files.
In PowerCenter, go to settings and scroll down. You will be able to upload FIT and TCX files. Only files that have power data from Stryd will be accepted. After the upload completes, a brief message will be displayed for a few seconds confirming the upload was successful.
If you have additional questions, contact firstname.lastname@example.org.