The best and easy way to convert corrupt OLM file into PST formats by using Vartika Mac converter software. It is very trustworthy so you can trust on this for converting the data of OLM mailbox along with all properties mailbox, inbox, journals, task, calendar, contact, sent items, junk mail, attachments, and etc. this software supports all version of windows upto latest Win8.1(32 and 64 bit). And MS Outlook version (97, 2000, 2002, (XP), 2003, 2007, 2010, 2013, 2016, and 2019 (32 and 64 bit).
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Manual technique: OLM to PST conversion
Open Control Panel and select Mail>Email Accounts> New.
Select Manually configure server settings then, click Next.
Choose IMAP/POP settings then, click Next.
Enter your IMAP account credentials and Incoming and Outgoing server details, then clicks More Settings.
This may help you, Jimmy