The Best PST Converter is a robust and easy-to-operate solution designed to export Outlook data files into a wide range of formats, including PDF, MBOX, EML, MSG, DOC, TXT, RTF, OLM, Office 365, Gmail, G Suite, Thunderbird, CSV, VCF, Exchange Server, IMAP, and more. Its clean and intuitive interface makes it accessible for both beginners and advanced users. The software supports all versions of Windows and every edition of MS Outlook, ensuring maximum compatibility. It delivers fast and reliable conversion while preserving the original data quality. The tool handles complete mailbox migration smoothly, without any complications.

To import PST to Office 365, you can trust on BitVare' s  PST to MBOX converter that is an advanced solution to save PST files to Office 365 cloud account. It enables to maintain all mail properties including attachments. It can import all orphan PST files to Office 365 web account at once and also import configured Outlook data to Office 365 directly.

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The best solution to import PST to Office 365, use the Advik PST Converter Tool. This application import both single and multiple PST files to Microsoft 365. It supports both Unicode and ANSI PST files. Outlook for Office 365 Importer is a completely safe and secure utility. Outlook PST files, large and small, can be easily loaded into the Office 365 cloud. The tool supports all versions of the Windows operating system, including 11, 10, 8.1, 8, 7, XP, and Vista.

I recently needed to import multiple Outlook PST files into an Office 365 mailbox and found that there are a few reliable ways to do it--depending on the size of the PST files and whether you want a manual or automated approach. I'm sharing what worked best for me.

Manual Method (For Small PST Files)

If you have a small PST file, you can use Outlook's built-in import feature:

1. Open Outlook connected to your Office 365 account

2. Go to File → Open & Export → Import/Export

3. Choose Import from another program or file

4. Select Outlook Data File (.pst)

5. Browse the PST file and complete the import

This method works, but it can be slow and isn't ideal for large or multiple PST files.

Professional Method (Recommended)

For large PST files, multiple mailboxes, or to avoid errors, a professional tool is much easier. I used ATS PST to Office 365 Converter, which allows direct PST upload to Office 365 without Outlook dependency.

Benefits I noticed:

• Direct PST to Office 365 migration

• Supports large and multiple PST files

• Preserves folder structure, emails, and attachments

• Faster and more reliable than manual import

You just add the PST file, sign in to Office 365, and start the migration.

Manual import is fine for a one-time, small PST file. But if you're dealing with bulk migration or want a stress-free solution, using a professional PST to Office 365 tool like AyushTech PST Converter Software saves time and prevents data loss.

Hope this helps anyone looking for a smooth PST to Office 365 migration!