엑셀 공부중인 사람인데요..

{=SUM(($C$11:$C$5000=$F$5)*($F$11:$F$5000=$G$6)*$G$11:$G$5000)}

셀에 위 수식이 있는데요 양쪽 끝에 있는 {  } 는 무슨 뜻인가요? 
F2 눌러서 셀을 수정하니깐 #VALUE! 오류가 뜨고 수정이 안되네요..

자세히 보니깐 저 { } 괄호는 수식입력줄에만 보이네요 셀에는 안보인다능...
고수님들 부탁드립니다.~~