Platt College Partners with Excel High School to Provide Pathway to High School Diploma 100% Online Program is Free of Charge with Access to Platt Facilities, Computers, In-person Support News provided by Share this article Excel High School are excited to announce a new partnership that will help individuals who didn't graduate from high school go back to class and earn their diplomas through an accredited online high school. The program, which is delivered 100% online and free of charge to students, will be administered through Excel High School with Platt covering the cost for students and providing access to the school's facilities, computers and a facilitator to assist students to help ensure their success.