You can take the help of
MacSonik OLM Converter which can migrate OLM files into multiple file formats like PDF, PST, EML, MSG, TXT, HTML, MBOX, DOC, CSV, and more file formats. The software is secure and launched after getting verified by top-level experts. It has a friendly interface and provides operational steps that are quickly accessible by all technical and novice users. This software allows users to convert all the email items of the OLM database such as emails, attachments, etc into various file formats. Moreover, the application has plenty of powerful features with the help of which users can convert OLM files as per their requirements.