Ukusebenza kwe-Microsoft Excel kukhulu, futhi esinye sezici eziyinhloko zohlelo lusebenza ngedatha yezinombolo. Ngezinye izikhathi ngesikhathi sokusebenza kwe-arithmetic noma lapho usebenza nezingxenyana, uhlelo luzungeza lezi zinombolo. Ngakolunye uhlangothi, lokhu kuyasebenza, njengoba ezimweni eziningi kakhulu, ukunemba okuphezulu kwezibalo akudingekile, futhi izinhlamvu eziningi ezengeziwe zithatha isikhala esengeziwe esikrinini. Ngaphezu kwalokho, kunezinombolo okuyingxenye yazo engapheli, ngakho-ke kufanele zincishiswe kancane ukuze ziboniswe esikrinini. Ngakolunye uhlangothi, kunezibalo lapho kudingekile khona ukugcina ukunemba, futhi ukuzungeza kuholela emiphumeleni engathandeki.
Ukuze kuxazululwe izinkinga ezinjalo, i-Excel inikeza isisombululo esilandelayo - umsebenzisi angakwazi ukusetha ukunemba kokusondeza ngokwakhe. Ngakho-ke, uhlelo lungalungiselelwa zonke izinhlobo zezibalo, okuvumela isikhathi ngasinye ukuthola ibhalansi efanele phakathi kokunemba kokubonisa ulwazi kanye nokunemba okudingekayo kwezibalo.