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In the duplicate world, definition means everything. That’s because a duplicate is subjective to the context of its related data. Duplicates can occur within a single column, across multiple columns ...

Microsoft Excel spreadsheets frequently use similar formulas along columns. For example, you might need to keep a running total or tabulate a list of product inventories. Repetitively typing each ...

Excel 2013 can locate duplicate rows as long as one column contains a unique identifier for each record, such as a product ID or account number. By referencing this identifier, you can find duplicates ...

Select all the relevant cells, and in the Data tab, click the main part of the split "Data Validation" button. Then, click ...