expression.SourceFullName
expression Required. An expression that returns a LinkFormat object.
Remarks
Using this property is equivalent to using in sequence the SourcePath, PathSeparator , and SourceName properties.
Example
This example sets MyExcel.xls as the source file for shape one on the active document and specifies that the OLE object be updated automatically.
With ActiveDocument.Shapes(1)
If .Type = msoLinkedOLEObject Then
With .LinkFormat
.SourceFullName = "c:\my documents\myExcel.xls"
.AutoUpdate = True
End With
End If
End With