EXCELLING is a playable word

excel Scrabble® Dictionary

verb
excelled, excelling, excels
to surpass others
67 Playable Words can be made from "EXCELLING"
   2-Letter Words (8 found)
   3-Letter Words (23 found)
   4-Letter Words (18 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)
   9-Letter Words (1 found)