Exceling or Excelling: How To spell?

The word Exceling is misspelled against Excelling, which is present continuous of "Excel"

Excelling has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings exce & ing which should not be misspelled with single 'L'
Wrong Spelling:  exce-l-ing 
Correct Spelling:  exce-ll-ing 
Find more wrongly spelled words of Excelling to spell it well.