With the help of eSoftTools OST to PST converter software, any user can easily resolve any errors in Outlook OST files without any misunderstanding. Using this tool you can smoothly convert Outlook OST files to PST and 13+ more formats such as Office 365, MBOX, EML, EMLX, MSG, HTML, vCard, YahooMail, IMAP Account, etc. it supports all versions of Outlook application. But this tool can easily convert or recover OST files without the MS Outlook applications. This software easily export Outlook calendar from OST to ICS.