According to me you should not take any decision in a hurry take some time a wrong decision can harm your database. You can recover the password protected files with the help of this tool. You can convert your data into various different formats like OLM to PST, EML, MSG, vCal, vCard, MBOX etc. You can convert OLM data without any data loss.
If you are searching for the best utility to Migrate OLM file of Outlook Mac to various file formats, then you can give a try to Mac OLM to PST Converter Tool. It is a reliable and efficient Software to Export Outlook OLM Mailbox items emails, contacts, journals, etc. This is a Mac supportable tool that can easily be installed on any version of the Mac operating system i.e. Mac 10.15, 10.14, 10.13, 10.12, 10.11, 10.10. and all below versions. Demo version of the software is also offered to the users by which they can simply export a few items from OLM data to PST data format.