Excel combobox and list

Job ID: 34989108

Budget: $10 – $30 USD

I need an expert in excel and VBA.
I have combobox in one sheet and the table of information in another sheet which users can choose among them.
However i want that user can add their own item to the combobox if they can not find their desire item and therefore the list should be updated.
Related categories: Visual Basic Excel Visual Basic for Apps