Sorry for the delay. I believe this does exactly as your spreadsheet example indicates:
Sub Unique_List()
Dim wsFinal As Worksheet: Set wsFinal = Sheets("Final_Format")
Dim ws As Worksheet
Application.ScreenUpdating = False
For Each ws In Worksheets
If ws.Name <> wsFinal.Name Then
ws.Range("A2:A" & ws.Range("A" & Rows.Count).End(xlUp).Row).Copy Destination:=wsFinal.Range("C" & Rows.Count).End(xlUp).Offset(1, 0)
End If
Next ws
wsFinal.Range("C1:C" & wsFinal.Range("C" & Rows.Count).End(xlUp).Row).AdvancedFilter xlFilterCopy, , wsFinal.Range("M1"), True
Application.ScreenUpdating = True
End Sub
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