Hi there, You do not need to check that your OST file is corrupted or not corrupted. If you are still using Exchange Server and OST files is connect with Exchange Server. It means Your OST files are fine but If your OST files has disconnect with your server. It mean, you can not use these OST files ...

Migrating Exchange 2010 mailbox to Office 365 is a difficult task for the users; Office 365 is a cloud-based software as a service (SaaS). All users storing their data in Exchange 2010 are willing to migrate Exchange 2010 to Office 365 swiftly. To begin the task, users seek a better tool to proceed ...