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 ...

Many of them are backward- and forward-compatible, but check the system requirements before you download anything. Note that newer isn’t always better: Many of the ...

Type an apostrophe before entering or pasting two numbers separated by a hyphen in Microsoft Excel to keep the numbers from being converted to their month and date equivalent. Dennis O'Reilly Former ...