The best method to convert OST files to PST is by using either a manual approach with Outlook or a professional OST to PST converter tool. If you have access to Outlook, you can easily export OST data to PST through the built-in import/export feature. Simply open Outlook, go to File > Open & Export, and select Export to a file. However, this method works best for smaller files and users who have Outlook installed. For larger OST files or those without Outlook, using a professional tool like an OST to PST converter is ideal. These tools allow you to convert OST to PST without Outlook and preserve all your data, such as emails, attachments, contacts, and calendar events. They’re fast, and efficient, and often come with additional features, like batch conversion and support for multiple file formats. If you want a free, one-time solution, many tools offer limited trials that could be sufficient for small conversions, but for regular use, a paid tool would provide the best results.

Free Convert OST in PST- https://www.filesrecoverytool.com/ost-converter.html

If you're searching for free one-time converter tools then, I recommend the ToolsBaer OST to PST converter tool. This tool, with just one click, efficiently converts your entire Offline OST data into PST format. This tool won't cause you any issues during the conversion process. You don’t need to be worried about data loss. This utility ensures that your data remains safe and secure, free from any errors. Users can get a preview of selected OST files before the process of conversion. It also offers a free demo pack to all users to convert a few OST files to PST file format free. This application is compatible with both Windows and Mac operating systems.

Read More - https://www.toolsbaer.com/ost-to-pst-conversion/