This Excel tutorial explains how to assign sequence number to duplicate records using COUNTIF Function.
Excel assign sequence number to duplicate records
Suppose you have two sales transactions on the same date but you don't have any transaction timestamp (but records are in ascending order of time), you may want to add a number to each transaction so that you can easily identify and filter the first transaction, 2nd transaction, etc. Assigning sequence number can also facilitate to use SQL to...
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