Hello Frnds, I am using 2007 excel. My file size is 21 MB. I used *sumifs formulas*extensively in each sheet(total 25 sheets). My problem is whenever I open the file or close or calculate or save it takes much time say 20 min. Would like to make my workbook faster. Could you please guide me. I have some idea like: Shall I use sumproduct instead of sumifs - sumproduct is faster than sumifs?? shall I use Pivot table and get pivot formula to get data. or any other ways.
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