You can approach manual method to Import PST files to Microsoft Office 365. It is known as Network upload method. It is not too complicated, with proper guidance one can do it easily. Read this guide on Import PST File to Office 365 to learn more about the complete manual procedure.

Step 1: Copy the SAS URL and download AzCopy.
Step 2: Upload your PST files to Microsoft 365.
(Optional) Step 3: View a list of the PST files uploaded.
Step 4: Create the PST Import mapping file.
Step 5: Create a PST Import job.
Step 6: Filter data and start the PST Import job.

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Download an appropriate solution MailsDaddy PST to Office 365 Migration Tool to quickly import PST files into Office 365. Using this users can migrate PST to Office 365 Primary as well as Archive Mailbox. It has the ability to easily import multiple PST files into single or multiple user accounts a single time.
The program enables users to view the preview of overall PST file databases in the Preview port before conversion into Office 365.
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