Count Distinct in Excel
To count the distinct value of a list of data, you can try the following functions (Assume the data are in A1:A30000, you cannot use A:A in this function):
=SUMPRODUCT((A1:A30000<>"")/COUNTIF(A1:A30000,A1:A30000&""))
=SUMPRODUCT((A1:A30000<>"")/COUNTIF(A1:A30000,A1:A30000&""))
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