Download and install the SysInfo Mac OLM Converter Tool as an administrator.
Choose the Select File or Select Folder option to add the OLM files and click Open.
Preview the OLM file and select all the Folders & Subfolders to convert. Click Next.
Now, select saving format as PST from the down list.
After that, click on the Remove Duplicate button to remove duplicates based on To, From, Body, Subject, and Bcc.
Now, choose Save in Same Folder or Custom Folder Name for the resultant file based on your need.
Click on the Migrate or Backup Emails Without Attachments Files option to save the resultant file without attachments.
If you want to split the size of the resultant PST file then, click on Split resultant PST file based on MB & GB.
Click on the Date Filter option to convert the emails from OLM files based on the Start Date & End Date.
Afterward, click on the Path To Save button to save the resultant file in your desired location.
Click on the Convert button to convert the Mac OLM file into PST format.
Finally, click on the OK button to complete the migration process of OLM to PST.
Select Gmail as the Save As option from the drop-down list.
Now, enter your Email Address or Password option and click on the Sign In button.
After that, click on the Remove Duplicate button to remove duplicates based on To, From, Body, Subject, and Bcc.
If you want to save all calendars & contacts on the desktop, then check this option.
Click on the Migrtae or Backup Emails Without Attachments Files option to save the resultant file without attachments.
Click on the Date Filter option to convert the emails from OLM files based on the Start Date & End Date.
Now, click on Custom Folder Name and provide the folder name for the resultant file based on your need.
Click on the Convert button to migrate OLM files into Gmail format.
Finally, click on the OK button to complete the migration process of OLM to Gmail.
