Compare Two Spreadsheets For Duplicates

Principle of comparing the data of two columns in Excel We used the COUNTIF function when defining conditions for formatting column cells. In this example, this function checks how many times the value of the second argument (for example, A2) occurs in the list of the first argument (for example, Table_2). If the number of times is 0, then the formula returns TRUE. In this case, the cell is ... ................
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