Final answer:
The keyboard shortcut to preview a macro is not standardized and varies by system. The common shortcut for viewing or editing macros in Excel is Alt + F8. Developers may need to use IDE-specific shortcuts or commands.
Step-by-step explanation:
The keyboard shortcut to preview a macro in Microsoft Excel is not universally standardized as a single shortcut across different versions or systems. However, if you are looking to view or edit a macro, you can often do so by using the Alt + F8 shortcut, which opens the Macro dialog box where you can run, edit, or delete a macro. For other kinds of previews, developers may rely on their specific Integrated Development Environment (IDE) shortcuts or use the Run command from the macro editor.