If you want to import Outlook OST files to Windows 10 mail, So try the eSoftTools OST to PST converter software. You can easily convert or import OST files to Windows 10 mail and 13+ formats without losing any important data. It provides a bulk conversion option, help of this option you can convert bulk OST files in some time without any errors. Very powerful option in this tool that's the Split PST file option. Using this option, you can easily split a large PST file to multiple PST files in one click.
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