Increase pro-isam file

Hi, I want to know if there is any way to access a .pro file (in PRO-ISAM or PROISAM format).
It is the first time that I work with PRO-IV and PRO-ISAM so I am lost, I have some .pro files that I want to read but they are encoded and are not readable with the naked eye.

My problem is that I want to decode this files from PRO-ISAM to plain text to later pass them to a table and import them into an oracle 9 database, is there any way to do it?.

attached image of how they look