How to get cshff.off by modifying clayff.off file ?

Hello dear Materials studio users
​​​​​​​I am doing a simulation study that requires the use of the modified version of CLAYFF potential (CSHFF). I have already the clayff.off file and the parameterization data of CSHFF, the problem is that I don't understand how to modify the data in clayff.off to get the cshff.off file. Is there anyone who can guide me through this process or if possible share with me the cshff.off file? I really need your guidance and assistance.  

best regards,
​​​​​​​Askanderou