Handling Oracle non-standard CSV exports

We have worked on several projects where Oracle DBAs create direct table extracts using standard Oracle tools. Those tools do not generated properly escaped CSV files. As such, lines like

“123”,“quote”,“test”
“345”,“Mc"Donalds”,“test2”

Cause Snaplogic’s CSV parser to reject those lines

Does anyone have any recommendations on how to deal with this type of file?

Thanks

PS We even have a case in which a database column has JSON text, which compounds the non-escaped values even further