samdenver 0 Posted March 5 The best and easy way to export Outlook OST file to PST format is using Yota OST to PST Converter Tool. This will help you quickly convert offline file data to PST without missing any information. It lets you convert multiple OST files at once without losing a single piece of information. Moreover, it does not need the support from any external utilities to accomplish this conversion. One of the best feature of this software is that it support converting orphaned and corrupted OST files to PST. Here are the steps to export Outlook OST files to PST: Run the software and select your OST file. Then click Export and choose PST as a saving format. Finally, hit the Save button to begin the conversion. Quote Share this post Link to post Share on other sites