ESCI is software that runs under Microsoft Excel, on Windows or Mac.
ESCI for Introduction to the New Statistics (2016) is a new release designed to accompany the new textbook and to help anyone learn the estimation approach to statistics. It’s highly interactive and lets you play with lots of cool things. You can download it for free from the book’s Companion Website here. Click on the ‘Student’ tab at the top, then click on ‘ESCI download’.
After downloading to your local hard drive, ESCI workbooks should open and run immediately. For full ESCI functionality you need to enable macros.