Stella ost 2010 converter software is an best software for converting the entire ost file's data to a pst file. This program converts all items from ost mailboxes Office 365 account. This software will help convert all damaged and unmounted mailboxes in ost to PST file. It supports all versions 32bit and 64bit of the files in the ost format. This software converts the deleted data of all items to a pst file.