Sending Card Data via SFTP

Is there any way to send the output of a card (XLSX or CSV format) to an SFTP server? We are looking for a way to schedule weekly updates of a report and have it automatically sent to an SFTP directory. I saw that there is an SFTP writeback connector available as part of the Domo Integration Studio, but that appears to be for sending data from a dataflow/ETL rather than from a processed report.

Any help would be appreciated!