Few years ago, I was finding a solution that could help me out to shift database of OLM Outlook from Mac to Windows PST. I tried lot of tools but all were failed to convert my 7 GB OLM files into Windows Outlook PST format. Later, I got MailSouls OLM to PST Converter which has finally converted my 7 GB OLM files in one time as it provides the facility to convert large files in seconds without damaging the original content.
Chris Mathew, Canada