Explain the process for creating a custom function in Excel.
Instruction: Describe how to write and implement a user-defined function in Excel using VBA.
Context: This question tests the candidate's skills in extending Excel's functionality through custom scripting with VBA, allowing for tailored solutions to complex problems.
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First, to access the VBA editor in Excel, you press Alt + F11. This shortcut opens the VBA Editor interface. Once you're in the VBA editor, you'll need to insert a new module where your custom function code will reside...