You will get best result while converting OLM files to PST format with EmailsGuru OLM to PST Converter software. The software allow to export corrupted OLM files and save them into PST files without any change in meta properties of OLM emails and conserves folder hierarchy of OLM files. Users can use filter option to export desired OLM files. If you does not have technical knowledge then this tool will help you very much to convert OLM files to PST format. The software is also vailable in demo version.

know more info: https://www.emailsguru.com/olm/pst/