=SUMIF(Sheet1!A:A,"张三",Sheet1!B:B)+SUMIF(Sheet2!A:A,"张三",Sheet1!B:B)+....+SUMIF(Sheet12!A:A,"张三",Sheet1!B:B)
复制一下,还是很快的。
=VLOOKUP($A2,Sheet1!A:C,3,0)+VLOOKUP($A2,Sheet2!A:C,3,0)+VLOOKUP($A2,Sheet3!A:C,3,1)+VLOOKUP($A2,Sheet4!A:C,3,2)+VLOOKUP($A2,Sheet5!A:C,3,3)+VLOOKUP($A2,Sheet6!A:C,3,4)+VLOOKUP($A2,Sheet7!A:C,3,5)+VLOOKUP($A2,Sheet8!A:C,3,6)+VLOOKUP($A2,Sheet9!A:C,3,7)+VLOOKUP($A2,Sheet10!A:C,3,8)+VLOOKUP($A2,Sheet11!A:C,3,9)+VLOOKUP($A2,Sheet12!A:C,3,0)
几张表
那可能要数据透视表会更方便
或者用SUMPRODUCT函数