Converting OST Files to PST Format: A Guide for Microsoft Outlook Users
Microsoft Outlook users often find themselves in a predicament when trying to convert OST files to PST format. The built-in features of Outlook can only export data from an active account, but what about when the original Exchange or Microsoft 365 account is no longer available?
This is where specialized conversion software comes into play. Tools like Stellar Converter for OST are designed specifically to handle orphaned OST files and convert them to PST format.
According to Microsoft MVPs and IT professionals, Stellar Converter for OST stands out from the competition due to its ability to save OST file items in various formats, including MSG, EML, RTF, HTML, and PDF. Additionally, it doesn't require an active Exchange Server or Outlook profile to function.
Another option is the Online OST Converter, which supports free conversion for OST files up to 500 MB and offers a premium plan for larger files up to 5 GB.