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 ...

Cells in Excel are referred to using relative or absolute references. A formula with relative references changes when the cell's position does. If, for example, a cell has a formula "=A1" and you copy ...

Excel spreadsheets are a daunting affair for many. And indeed, when you are confronting dozens of rows and columns comprising hundreds if not thousands of cells filled with all sorts of data, it's ...