Triace Games ps2 open model

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Looking on the internet I found several topics of people who managed to extract files from the Valkyrie profile and Star Ocean 3.
I managed to unzip it using the unpack Slz and now I have the Files. Slz
. SLE
. pak1
. pak2
. Pak3
. bin
I don't know how to proceed from Here.
i downlod maya 2018 and try to use  triace ultilities but ever i gave error on script