You can just delete OST files they are caches and are re-built. Also check there actaully is a valid data file in File -> Info -> Account Settings -> Account settings -> Data files tab.
Microsoft Outlook categorizes Outlook Data Files into two types: PST and OST files. PST files contain data stored in your personal folders, whereas OST files contain data downloaded off your Exchange ...
Let us see how we can repair corrupt Outlook .PST & .OST personal data files on your Windows 11/10 PC. Outlook Inbox Repair Tool (SCANPST.EXE) Repair corrupt Outlook PST files using Fix It OST ...
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