The easiest and most reliable way to convert an OST file to PST format is by using third-party software. Manual methods can be time-consuming, complex, and carry a significant risk of data loss. That’s why using a dedicated OST to PST conversion tool is often the best and safest option.

Among the many tools available on various platforms, GoldyTools OST to PST Converter stands out as an effective and user-friendly solution. You don’t need any technical expertise to operate it, and it allows you to convert your OST files to PST format with ease.

One of the key advantages of this tool is its ability to handle bulk OST file conversions—regardless of the file size. It’s also fully compatible with all major versions of Microsoft Outlook, including 2003, 2007, 2010, and 2013.

You can even download a free trial version of the software to explore its features before making a purchase.
https://www.goldytools.com/blog/import-ost-to-outlook-pst/