If the goal is to copy a documents tables to the clipboard, you can use this:
Sub CopyDocTablesToClipboard()
Dim oTbl As Table
Dim oDoc As Document
Dim oTempDoc As Document
Dim oRng As Range
Application.ScreenUpdating = False
Set oDoc = ActiveDocument
Set oTempDoc = Documents.Add(ThisDocument.AttachedTemplate.FullName, , , False)
For Each oTbl In oDoc.Tables
Set oRng = oTempDoc.Range
oRng.Collapse wdCollapseEnd
oTbl.Range.Copy
oRng.Paste
Set oRng = oTempDoc.Range
oRng.Collapse wdCollapseEnd
oRng.InsertAfter vbCr
Next oTbl
oTempDoc.Range.Copy
oTempDoc.Activate
oTempDoc.Close wdDoNotSaveChanges
lbl_Exit:
Exit Sub
End Sub