Mac OLM to Gmail Migrate you can see a live preview of the internal items of OLM before starting the conversion process. Everyone knows about OLM file data such as notes, text, photos, calendar events, convert into Outlook PST, EML, MSG, and MBOX format. This software provides a free demo version tool with the help of this tool user can migrate only 30 files as a trial.
Once youre logged in, click the Settings icon in the top-right corner.
Click Settings.
In the Settings page, click the Forwarding and POP/IMAP tab.
From the IMAP Access section, choose Enable IMAP, and then click Save Changes.
Step 2 Add IMAP-enabled Gmail account into Outlook for Mac. The steps to add an IMAP-enabled Gmail account in Outlook on macOS will differ depending on the version of Outlook for Mac you are using.
Steps to Add Gmail Account in Outlook 2019/2016 for Mac
Open your Outlook for Mac application, and click Outlook >Preferences >Accounts.
In the Accounts window, click the plus (+) sign in the lower-left corner, and then select New Account.
When prompted, enter your Gmail account e-mail address and password.
Sign in into Gmail
Now, click Allow.
In the dialog box that appears, select Open Microsoft Outlook.
Click Done to start using Gmail in Outlook for Mac.
Transfer OLM File Data to Gmail
In your Outlook for Mac account, select the folder containing items you want to export to the Gmail account.
Right-click the selected folder, select Move or Copy to folder button.
In the pop-up window that appears, choose Gmail label name from the list, and then click copy.
Click Send/Receive to transfer all OLM emails to Gmail account.