After trying every possible method at the end you have to rely on a third-party tool, using ATS OST to PST Converter you can save a lot of time, it allows you to convert single as well as multiple mailbox items, the amazing thing is that you can export your OST database to Office 365 and Live Exchange Server, it is compatible with MS Outlook version 97, 98, 2000, 2002, 2003, up to 2016. It does not hang while converting the large size of files, and encrypted or password protected files are not the restriction of this tool

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ATS OST to PST Converter providing truly safe recovery / conversion utility which simply repair & convert crashed Outlook OST file into healthy formats like as PST, EML, HTML, vCal, vCard, MBOX, MSG, EMLX, Exchange server and Office 365 etc. This OST file converter software also works to recover damaged or crashed OST file components like as contacts, calendars, inbox, deleted items, notes, journals, embedded images/ scheduled task and appointments etc.

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Users can do lots of task with ATS OST to PST Converter because it is made up of very interesting features, it is capable of converting highly damaged data into PST formats, you can migrate single mailbox as well as multiple mailboxes items including inbox, outbox, sent-items, deleted-items, drafts, contacts, calendars, notes (to, cc, bcc, subject, date and time). It support window server 2003, 2003 R2, 2008, 2008 R2 2016 and able export all the OST data into Live Exchange Server and Office 365.

Get more details:   https://goo.gl/sDezqf

If your OST file is not opening then don’t worry, you can easy repair corrupt OST file and convert OST file into PST format by the manual tricks and OST to PST Converter tool.  As a Data Recovery expert I suggest all the users to read the article: How to remove errors in OST file and convert OST file into PST format? from where they will know the complete OST to PST conversion process guide which will help them to convert OST to PST in simple way.