Recognizing that nearly a half million working-age Hoosiers lack a high school diploma, Goodwill opened The Excel Center for adults in 2010. The Excel Center is a tuition-free public high school for adults offering an Indiana Core 40 high school diploma.

There are currently six locations in Indianapolis — W. Michigan Street, The Meadows, Shadeland, W. 34th Street, University Heights and Decatur — and one location each in Anderson, Bloomington, Clarksville, Kokomo, Lafayette, Muncie, Noblesville, Shelbyville and Richmond.