Automatically Run VBA Code when an Excel Workbook Opens

Question

I have VBA code in I would like to run when the Excel workbook is opened.

I tried creating a public procedure in the sheet the code is supposed to run in:

Public Sub Workbook_Open 
    ' Some code here
End Sub

It does not run when the workbook opens.

It is supposed to create a combobox in one of the cells and then fill it with information from the database.

Answer 1

Make sure that the code is in the ThisWorkbook scope of the VBA editor and not in a module or worksheet:

Option Explicit

Private Sub Workbook_Open()
    MsgBox "Autorun works!"
    'your code here
End Sub

And make sure that your macros are enabled .

For details also see Microsoft's documentation: Automatically run a macro when opening a workbook .

Answer 2

Adding to @Pᴇʜ's answer, you can also use the following procedure in standard module:

Sub Auto_Open()
    '// Your code here...
End Sub

Answer 3

You are trying to create an event procedure that activates when you open a book. Go to thisworkbook in the VBA editor and choose workbook open procedure from the drop down list above the coding window, or you can type manually:

Private Sub Workbook_Open()

End Sub