excel at

excel at something

and excel in something

to do something in a superior fashion. She really excels at running. Wally does not excel at anything. Frank always hoped he would excel in math.

Name	Pronounced	Usage
Ewen	-	Scottish
Ackary	['ækəri]
Letizia	le-TEE-tsyah	Italian
Lorencio	lo-REN-thyo (Spanish), lo-REN-syo (Latin American Spanish)	Medieval Spanish
Vijaya	-	Hinduism, Indian, Telugu, Kannada, Tamil, Malayalam, Marathi, Hindi
Mathilda	[mə'tildə]