Use Third-Party Software: If the OST is orphaned or inaccessible, you'll need OST-to-PST conversion tools such as Stellar Converter for OST or OST to PST Converter. These tools allow you to open and extract data from OST files even if the original account or server is unavailable.
Converting an OST (Offline Storage Table) file to a PST (Personal Storage Table) format can be necessary when accessing data stored in an OST file without a direct connection to the original Exchange Server or Microsoft Outlook account. Here's how you can convert an OST file to PST:
Manual Export via Outlook: If you still have access to the Outlook profile linked with the OST file, you can manually export data to PST:
Open Outlook and go to File > Open & Export > Import/Export.
Select Export to a file, then choose Outlook Data File (.pst).
Select the folders to export (such as emails, contacts, etc.), and click Finish to save the data as a PST file.
