I have a complicated SUMIF problem I think: I want to sum the values in a column only if in 2 other columns, numbers match each other. I.e. if value in A2 matches A3 AND value in D2 matches D3, I want the sum of numbers in C1:C4 added. I've uploaded version of spreadsheet with all columns but with most of the records deleted (it's a large file with >100k records). In my spreadsheet, I want column FK to add up the numbers in column ES only when the values in column A match each other and the values in columns DN match each other.
Solved by E. H. in 19 mins