You can use the software **Convertertools OLM converter**, for transferring multiple OLM files at a time, without any loss of data and no data alteration. It can export all the mailbox items of OLM files with their attachments. It has an auto search option which helps you to find where your OLM files are located on your system. A beginner can easily use this tool who has no technical knowledge. You can select your OLM data according to their date by using its feature date range filter. If you want to know how it works you can use its trial version for free.

To convert OLM file to EML try the OLM converter which is the safest way to import OLM to EML format, you can even try the free demo version of the software. As we know manual process are less secure.

Read here https://www.recoveryandmanagement.com/convert-from-olm-to-pst/

The best way to convert the OLM files into EML is by using a professional software solution. In this regard, I have recently used the MCT OLM Converter that helped me to securely convert the OLM files into EML without losing the file data. This software has an interactive user interface that is compatible with both technical and non-technical users. Additionally, this software has some advanced featured that optimize the entire conversion task by maintaining high data integrity. You can also try its free demo version to analyze the performance of this software.

Get more info: https://www.mailconvertertools.com/olm-to-pst/