sifo ost to pst full version software is powerful software to convert all ost mailbox items using bst converter methods this software is convert all corrupted and unmounted ost mailbox items in to pst file this software is support all version 32bit and 64bit ost file this software is convert all ost file items using windows 11 32bit and 64bit. For more info visit this link https://www.sifosystems.com/ost-to-pst.php