If you want to open an OST file in Outlook but cannot access it directly, you can use eSoftTools OST to PST Converter for a quick and reliable solution. Outlook does not allow users to open orphaned OST files manually, so converting the OST file into PST format is the best option. This software safely converts OST files to PST while preserving emails, contacts, calendars, attachments, and folder structure. After conversion, you can easily import the PST file into Outlook using the Import/Export option. The tool supports all Outlook versions and ensures accurate, secure, and hassle-free OST file access without any data loss.

Read More:- Open an OST file to Outlook