VBA continues before Documents.Open Method Completes

I'm starting stimple and trying to just open and then close a list of
drawings. What i've noticed however is that vba doesn't wait for the Open
method to complete before continuing with code execution so the program
dies. What's a good way to wait for a file to open, close, save, etc before
continuting with the program? Thanks in advance,

-Chris

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For ii = 1 To colFileList.Count

strDwgName = colFileList.Item(ii)

If Dir(strDwgName) <> "" Then
ThisDrawing.Application.Documents.Open strDwgName
ThisDrawing.Close
Else
lstLog.AddItem "Error! " & strDwgName & " Does Not Exist."
End If

Next ii