A recent post solution (https://community.alteryx.com/t5/Data-Preparation-Blending/Can-somebody-tell-me-where-is-quot-Choose...) by @patrick_digan alerted me to a loss of functionality of the Input Tool. In order to define a range of data via SQL to Excel (e.g. Sheet3$A1:C10) you need to know a work-around instead of just modifying the SQL. The work-around is to modify the XML. I would like to see that functionality returned to the Input tool.