Tristan Mona, 16, from Avondale College has returned home after winning first place in the final round of the championship's PowerPoint category in Orlando, Florida last week.
Students from around the world entered the competition to prove their superior skills in Microsoft Word, Excel and PowerPoint.
In its 17th year, the competition attracted one million entries and held regional competitions before 152 finalists were sent to the United States for the last showdown.
