The spelling of the word "EXPEE" may seem unusual to some, but it follows the rules of English phonetics. In IPA transcription, the word is represented as /ɛksˈpiː/. The "E" represents the short "eh" sound, while "X" represents the "ks" sound. The double "E" represents the long "ee" sound. The use of "E" instead of "I" may seem strange, but it corresponds to the pronunciation of the word "expel." Overall, the spelling of "EXPEE" follows the principles of English phonetics and accurately reflects its pronunciation.