well... MS Word and MS Excel are totally two different planets, though they belongs to same Solar system (MS Office), its obvious that if ants can be found at Word, its not necessary that excel will too have them... however you'll be glad to have tons of silly bugs while working out on formulas...
Okay, something serious, i too asked the same sort of question here long ago and someone advised me to stop expecting Excel to offer all of the word features too!