retrieve older file version

It's not clear what you are wanting.

Creo 2 should open creo 2 and older files without a problem.

Can you attach a sample file?

Is it giving you any errors?

Older, as in before Creo 2, or older iteration, as in A.5 is the latest and you want A.2?

Hi Hassan,

Please elaborate and clarify your request.  It is unclear.

Thanks,

Amit