CCL map file for RC extraction in Cadence. How to convert my current one?

Hello,

I'm doing and extraction with encounter and I get the error  **ERROR: (ENCEXT-1438). Only CCL style syntax of layer map file is supported

I currently have a map file the the following sintax (I take a few lines from my file):

# Layer/ Object Name Layer/ Object Type Layer Number Datatype
# <t_ layerObjectName> <t_ objectType> <n_ layerNum> <n_ datatype>
#
#
CO   NET   30     0
CO   PIN    142   51

M1   NET    31    0

How can I convert this sintax to CCL format? 

Thanks!