Is it possible to use the sumif function across several worksheets within a single Excel file? For example, can the formula =sumif("W1"!$1:$1,$A3,"W1"!$3,$3), which returns the sum of values in row 3 on worksheet W1 in columns for which the row 1 value equals the value in cell A3, be extended to cover worksheets W2 and W3 as well? If so, how would this be done? Thanks!



