Use this excellent vMail OLM to PST Converter Tool to convert single or multiple OLM files into PST format at once without any data harm. It also enables to convert selective OLM files into PST format to save time and effort. It save converted OLM files into PST, EML, EMLX, MSG, HTML and PDF format. It displays the preview of all OLM files before the conversion. It maintains the data integrity and will not change anything in original formatting. It also maintains hierarchy of all files and folder during conversion. It GUI is very simple and easy to use by any users. It provide free demo version that ensure the user about it features and functions.

Know more info- https://www.vsoftware.org/olm-to-pst-converter.html