How can I transfer OST contacts and calendars to PST?

General Discussions
1

If you are trying to transfer OST contacts and calendars to PST is simple with powerful Aryson OST to PST Converter. The software allows users to export Outlook OST contacts into VCF format and calendars into ICS format while also converting the entire OST mailbox into PST without data loss. Simply install the tool, add the OST file, preview mailbox items, and choose PST as the saving format. You can also selectively export contacts and calendar entries using advanced filters. The tool preserves metadata, folder hierarchy, attachments, and timestamps throughout the process. It supports batch conversion, works without Outlook or Exchange Server, and handles inaccessible or orphaned OST files efficiently. This makes it an ideal solution for individuals, IT administrators, and enterprises managing large OST data securely.

2

For transferring OST contacts and calendars into PST, the practical approach is to convert the OST file into a PST while retaining the mailbox structure. This is useful when Outlook is unavailable or the original Exchange account is no longer accessible.
A few points worth checking during the conversion:

  • Contacts: Existing contact details can be exported along with the mailbox data.

  • Calendars: Appointments, meetings, and calendar entries can be retained in the resulting PST.

  • Folder Structure: Contacts, calendars, emails, and other folders remain organized instead of being combined randomly.

  • Selective Conversion: Specific folders can be selected when the entire OST does not need to be exported.

  • Preview: OST contents can be checked before conversion to confirm that the required contacts and calendar data are present.

For this type of OST recovery, WholeClear OST to PST Converter is worth considering. It works independently of Outlook and Exchange Server and provides a preview before exporting the selected OST data to PST. I’d suggest testing the required contacts and calendar folders with the free version first, then processing the complete file if everything looks correct.
If the OST contains important business appointments or contacts, checking the converted PST in Outlook before removing the original OST is a sensible final verification step.