Open Latest File By Date Modified

I have manged to search for the last updated file on a folder but i want to use the filename as the source for a copy and paste. it all seems to work bar the linking of the 2 processes the error message 'run time error 9 subscript out of range' is the file is already open should it just not use the same variable to copy the files?



Option Explicit

Sub Get_Availability_Data()

Application. ScreenUpdating = False
Application.DisplayAlerts = False
Application.EnableEvents = False

Dim wsTo As Worksheet, wsFrom As Worksheet

Dim myDir As String, fn As String, a(), n As Long, myFile As String
Dim myDate As Date, temp As Date
myDir = "C:BarkingEMCIN"
fn = Dir(myDir & "*.csv")
Do While fn <> ""
temp = CreateObject("Scripting.FileSystemObject").GetFile(myDir & "" & ................................................