How To Create A Function In Vba Excel

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To create a function in VBA Excel, you can follow these steps:

  1. Open Excel and press ALT + F11 to open the Visual Basic Editor.
  2. In the Project Explorer window, find the workbook where you want to add the function.
  3. Right-click on the workbook name and select Insert and then Module. This will insert a new module in your workbook.
  4. In the module window, you can start typing your function. A basic syntax for a Function in VBA is:
    Function functionName(arguments) As returnType
      ' Code goes here
    End Function

Replace functionName with the name you want to give to your function, arguments with the input parameters for your function, and returnType with the data type that your function will return.

Here’s an example function that adds two numbers:

    Function AddNumbers(num1 As Double, num2 As Double) As Double
      AddNumbers = num1 + num2
    End Function

In this example, the function takes two arguments (num1 and num2) of type Double and returns their sum.

To use the function in your Excel worksheet, you can simply call it like any other built-in Excel function. For example, if you want to use the AddNumbers function in cell A1, you can enter the following formula:

    =AddNumbers(5, 10)

This will display the result of the function (15) in cell A1.

Remember to save your workbook with macros enabled (.xlsm extension) in order to use your custom function.

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