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In Microsoft Excel, function keys (F1 through F12) serve various purposes and can be used for different functions. Here's a general overview of what each function key does in Excel:
F1: Opens the Excel Help task pane.
F2: Edits the selected cell.
F3: Opens the "Paste Name" dialog box.
F4: Repeats the last command or action, or cycles through cell references when editing a formula.
F5: Opens the "Go To" dialog box, allowing you to jump to a specific cell.
F6: Switches between the worksheet, ribbon, task pane, and Zoom controls. In some cases, it also moves to the next pane in a split worksheet.
F7: Opens the "Spelling" dialog box to check spelling in the active worksheet.
F8: Initiates the "Extend Selection" mode, allowing you to select a range of cells using the arrow keys.
F9: Calculates all worksheets in all open workbooks.
F10: Activates the menu bar. Pressing it again activates the key tips for the ribbon.
F11: Creates a new chart sheet for the selected chart in a workbook.
F12: Opens the "Save As" dialog box.
These are the default functions, and they can sometimes vary based on the specific version of Excel or any customization you or your organization may have applied. Additionally, some functions may require the use of the "Fn" (Function) key on certain keyboards, especially on laptops.
Remember that these function keys are just shortcuts, and you can often perform the same actions through the ribbon or menu options. If a function key is not working as expected, it's possible that it has been customized or disabled in the Excel settings. You can check and customize the function key settings in Excel by going to "File" > "Options" > "Advanced."