You can import PST files into Outlook 365 very easily. The
PST converter software helps to open corrupted pst files in outlook, it can repair pst files. In which software there are no limitations of size and it shows the live preview every time. It's all features are very amazing. The PST converter software supports all the versions of Microsoft Windows. You can download the demo version of this software on which you can export 25 emails from each mailbox.
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import PST file into Outlook