Needing to replace the formulas I have with my workbook due to slow calculation and saving times, I was wondering if I could use for instance COUNTIFS instead of the SUMPRODUCT without the use of an array formula. The formula I'm looking to replace is listed below:
=SUMPRODUCT(('[AY.xlsx]1998-2015'!$X$1:$X$8766=$K5)+('[AY.xlsx]1998-2015'!$X$1:$X$8766=$L5),--('[AY.xlsx]1998-2015'!$B$1:$B$8766=N$2),--('[AY.xlsx]1998-2015'!$W$1:$W$8766=$J5),--('[AY.xlsx]1998-2015'!$Y$1:$Y$8766=N$3))
=SUMPRODUCT(('[AY.xlsx]1998-2015'!$X$1:$X$8766=$K5)+('[AY.xlsx]1998-2015'!$X$1:$X$8766=$L5),--('[AY.xlsx]1998-2015'!$B$1:$B$8766=N$2),--('[AY.xlsx]1998-2015'!$W$1:$W$8766=$J5),--('[AY.xlsx]1998-2015'!$Y$1:$Y$8766=N$3))