Populate List Box based on Unique values from a column then use as a Criteria

Good Day!

I have a template with 2 different macros which gets it's data from another input file.

1st Macro:
I need to first populate a list box based on the unique value of a certain column (AZ) of the input file. Once it's populated, the user then selects which among the list he/she wants (one or more values can be selected at once - minimum 1 value).
NOTE: either List Box (Form Control) or List Box (ActiveX Control) depending on what is applicable - no idea at all

2nd Macro:
Use the selected items to copy the rows from the input file then copy to the new file under a certain worksheet name.
-below is the code used to copy data, but needs editing to copy only those that are under the selected criteria from macro 1.

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Attached files.

Thank you in advance.

EDIT: sample files attached