Can I add custom functions or formulas in Excel?

Yes, users can add custom functions or formulas in Excel using Visual Basic for Applications (VBA). VBA allows users to write their own macros or custom functions to perform specific tasks or calculations that are not built-in to Excel. By using the VBA editor, users can create custom functions with the desired calculations and then use them in Excel just like any other built-in function. Custom functions can simplify complex calculations, automate repetitive tasks, or even integrate with data from external sources. VBA provides a powerful platform for customization and extending the functionality of Excel, allowing users to tailor the software to their specific needs.