A sub routine such as this should do the trick. You will need to add the microsoft scipting runtime reference for this to work.
Sub RenameFiles()
Dim fso As New FileSystemObject
Dim flds As Files
Dim flds2 As Files
Dim FolderName As String
FP = ThisWorkbook.Path
Set flds = fso.GetFolder(FP).Files
For I = 1 To 133
oldname = Cells(I, 3).Value
newName = Cells(I, 2).Value
For Each f In flds
If f.Name = oldname Then
Workbooks.Open f
Workbooks(f.Name).SaveAs newName
Workbooks(f.Name).Close
Workbooks(newName).Close
f.Delete
End If
Next f