Need some help here...
I have attached a sample workbook to help with my request.
I have a huge file with all my credit card charges over the past 5 years (over 4000 rows) and I am looking to speed up some calculations. Currently, I am using Evaluate(SumProduct formula)... while this works, it is rather slow.
So...
1) I need help summing the "Charge Amounts" (Col C) by "Code" (Col A) by "Billing Cycle" (Col B). I have the unique "Codes" and "Billing Cycles" in an Array and have combined them both into one array.
2) Then I need to write the values back to the worksheet... Columns E:L
Thanks for ANY HELP... any questions please let me know
Phil