FitnessSyncer can create and read your health and fitness information in a FIT, GPX, KML, KMZ, PWX, or TCX file format from Amazon S3, DropBox, Google Drive, OneDrive or even e-mail. This is the easiest way to import files, export data, or to back up your data. Here is how you configure it:
Some services may produce a CSV which is a summary of an individual activity. For such services, you would use a this Map configuration option. That said, some of the documentation for the CSV Configuration may be useful. Keep in mind that the extension for such files must be .csv.
To configure Amazon S3, place your Access Key into the username field, your Secret Key into the Password field, and for the path, use bucket/directory/file.