Product IDs, serial numbers and other reference numbers require a unique identifier to avoid confusion when referencing a product or specific data point. Although you can manually enter unique numbers ...

Reversing the order of a column would be easy if the column was already listed alphabetically or sequentially; you would just sort in the other direction. However, data may not be in alphabetical or ...

Excel spreadsheet databases work because users can filter the data inside these workbooks. Filters are conditions you specify in databases and spreadsheets to extract only the precise, requested ...

Subtraction is the easiest way to count days between two dates in Excel. You can use the arithmetic operator – (minus sign) to subtract one date from another to find the number of days between them.

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