When businesses migrate mailboxes from Windows environments to Microsoft 365 (Office 365), one challenge shows up again and again: OST files. An OST (Offline Storage Table) is created when Outlook runs in Cached Exchange Mode, syncing mailbox data locally for faster access. It’s useful—until you need to move, recover, or export that data. Unlike PST files, OST files are tightly linked... https://buzzakoo.com/blogs/17032/Fastest-OST-to-PST-Tools-for-Windows-Office-365-Migration