How to export all values in the listbox (or better drop-down list)?

Hi,

I need your help, please. I have attached a file for better understanding.

I have two lists: "Countries List" and "Selected Countries List." Users can add countries from the drop-down list to "Selected Countries List" to keep track of all the countries they have visited. However, when exporting the file, it only exports the selected values in the "Selected Countries List." I want to get all the countries that are in the "Selected Countries List" without having to select them one by one.

Can you please assist me with this?

Thank you!