Volatile functions in Microsoft Excel are useful when you want to display real-time data, as they recalculate whenever a workbook is reopened, or when any other calculations are performed. However, ...

Function keys work differently on different programs ... If you are using MS Word, the F9 key will update your document. Click F9 to send or receive an email in Microsoft Outlook.

The F9 function is program-specific and may not have a pre-defined action in some applications. Users can often assign a ...

then press Ctrl+Shift-F9. Place your cursor in the target cell, then press Shift-F3 to open the Insert Function dialog. Choose a function from the list (SUM, AVERAGE, IF, COUNT, etc.) and click OK.

On some Gateway laptops, one of the function keys itself, like F9, doubles as an F-lock key. Use such a key to deactivate the F-lock by holding down the "Fn" key, pressing the F-lock key ...