Try the Sysconveretr for OST and convert OST file to PST format in Windows 11, 10, 7 and all other previous versions. With its simple user interface, it is appropriate for both technical and non-technical users. Using this tool you can also convert OST to PDF, CSV, EML and all other file-saving options.
Simple steps to convert OST to PST format without using Outlook -
1. Launch the SysConverter for OST on your system.
2. Add the OST file to the software interface.
3. Click on Export and choose PST option.
4. Browse the targeted location and hit on the Save button.
Done! Here complete the OST to PST conversion without Outlook installation.