Get analytics for a Book in Excel-compatible XLSX format (not to be confused with the legacy XLS format). The output of this endpoint is intended for manual review, as opposed to automated consumption by your application.
Some fields provided in the JSON output are not listed in the XLSX output. This behavior may change in future revisions of this endpoint.
Multiple endpoints, one object
This endpoint returns the same information as the JSON versions, but in a different format. You can find a detailed reference of the JSON analytics object here, although it doesn't strictly apply to the file returned by this endpoint.