You cannot open or recover an OST file directly in Microsoft Outlook without access to Microsoft Exchange Server, as it is server-dependent.
Best Solution: Use a professional tool like the BLR OST Recovery Tool. It allows you to:
In short: Manual recovery isn’t possible without Exchange—using a reliable OST recovery tool is the quickest and most effective way.
If you don’t have access to the Exchange Server, you can still recover your Outlook OST file. One way is to use a reliable third-party tool like Softaken OST to PST Converter. It lets you convert OST files to PST without relying on the Exchange Server, and it keeps all emails, contacts, and attachments intact. Using this tool are easy and simple, you dont need any tech skills to complete this task.
For a couple of days, I was unable to function smoothly with my Outlook OST file because of the corruption issue. I tried a lot of traditional ways to fix the corruption issue in my OST file but failed. Then, I found the Shoviv OST Recovery Tool, which helps me repair OST file corruption and save recovered data to PST, EML, MSG, and other file formats. It also provided more features to simplify repairing for corrupted OST, like a filter facility, incremental export option, etc. Try this software to deal with corrupted/damaged OST files smoothly.