I am trying to convert an old OST file to MSG format, but the problem is that the OST seems to be partially corrupted. Every time I try to convert it, the process stops with different errors like “OST file not readable”, “Data fetching failed”, or “Cannot extract mailbox items”. I need to recover and export my emails, but I am not sure how to deal with these errors or repair the OST before conversion. Can anyone guide me on how to fix OST corruption issues and successfully convert the OST file into MSG format without losing data? If possible, please also suggest reliable methods or tools that can handle damaged OST files and convert them safely.