Shailesh Kumar Product Tableau Prep (Project Maestro) is here: Redefining your data prep experience Shailesh Kumar April 24, 2018 It’s a big day for Tableau—we’re excited to announce that Tableau Prep (previously known as Project Maestro) is now available! Product Now in beta: Visual data prep with Project Maestro Shailesh Kumar November 27, 2017 We’re excited to release the first beta of Project Maestro, a new approach for combining and cleaning data.