Excel is moving to Landover.
http://riverdalepark.patch.com/articles/excel-academy-moving-to-landover-facility
I live near Excel's current location. I'll admit it isn't usually mentioned as a desirable school option. The public elementary schools that most people in the Hyattsville area try to get into are:
Glendaren Woods TAG program
French Immersion
Goddard Montessori
Public Middle school options:
Chesapeake Math. Info & Tech Charter School
Greenbelt TAG program
(possibly College Park Academy starting next year)
Public High School:
Roosevelt