Tableau Prep 2018.1.2 is out today!
Preparing spreadsheet data just got easier with wildcard union for sub-tables and multiple pivot groups. Plus we’ve added new connectors - Presto and statistical files (SAS, SPSS, R) - to help you connect to even more data. We've also made several performance improvements to give you a more seamless user experience.
Try it out now: https://www.tableau.com/products/prep
Upgrade here: https://www.tableau.com/support/prep-upgrade
As always, please post your questions in the forums and share ideas for product improvements with the dev team in the Ideas Forum.