Solved
Creo 8.0 to Creo 6.0
How to save creo 8.0 version .prt file in creo 6.0 version?
How to save creo 8.0 version .prt file in creo 6.0 version?
Plain and simple answer: Not Possible.
PTC has also removed the GCRI in Creo 7 and above.
This article will explain your options:
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