You can try for manual migration method which looks tough to implement but can be done with the consumption of time.
Follow these steps:
1. Setup IMAP Mail Account
2. Configure Mac Outlook with IMAP Mail Account
3. Synchronize GMail with Mac Outlook
4. Move Emails to Mailbox of IMAP
5. Transfer Emails in Windows Outlook from IMAP Mailbox
Else, third-party tool can be checked: How to Convert Olm files to Pst files
Follow these steps:
1. Setup IMAP Mail Account
2. Configure Mac Outlook with IMAP Mail Account
3. Synchronize GMail with Mac Outlook
4. Move Emails to Mailbox of IMAP
5. Transfer Emails in Windows Outlook from IMAP Mailbox
Else, third-party tool can be checked: How to Convert Olm files to Pst files
Thank you