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Calculating the number of unique values within a large range
I would be most grateful if someone could offer me some help.
I need to count the number of unique values within a column range. The range is between B2:B65536. Each value consists of a series of alpha and numerical characters and there are blank cells within the range. There will be around 30,000 plus entries. I have used various formulas, but due to the vast number of rows of data they crash. An example of one of the formulas I used is below: =SUMPRODUCT((1/COUNTIF(A1:A5,A1:A5&""))) I am desperate for an answer but am confused as to how to do this? Any help or assistance would be very much greatly appreciated. |
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