What is an ODBK file and how to restore that?

I have recently come across a situation where I am required to restore an ODBK file. Basically this is a database file of Intergy Server (An EHR platform). I don’t know how to restore that file into a supported DB engine and how can I view the data. Upon searching I came to know that this is an OpenEdge DB file.
The server is running a Postgres engine as well but there is no table related to that EHR.