In order to recovery corrupted or inaccessible Exchange OST file and its associated data items, you can simply rely on DRS OST Recovery Tool. The software has a capability to recover highly corrupted OST file and its data items like inbox, sent items, drafts, etc. with ease. The software is embedded with three different modes to manage corruption level. You can preview the recovered data in the preview pane of the software before saving it to the desired location. It works well with all the MS Windows versions without any hassle.
To migrate OST files to PST, utilize the OST Converter that is available & Windows both system. The program can export multiple OST files of Outlook 2019, 2016, 2013, 2010, 2007 into PST. It can create separate attachments folder of emails and completely save OST mails data into PST with attachments, images, formatting, hyperlinks, etc. You can download it and export few emails from each selected OST file to PST at free of cost. Read more:- https://www.softakensoftware.com/blog/convert-ost-to-pst.html