Allow Power Query results to be written back to a flat file or SQL table. Relivant forum thread: http://community.powerbi.com/t5/Integrations-with-Files-and/Can-PowerQuery-write-data-back-out/m-p/1...
With the December update you can use the workaround via R to export your data from Power BI to txt or SQL-server: http://www.thebiccountant.com/2015/12/28/how-to-export-data-from-power-bi-and-power-query/
