Are you thinking of how to save OST data file as PST file format? Then, here we are recommending the best solution – OST to PST Tool. It is an amazing solution and a very helpful solution for all home users and business users to save OST data file as PST file. Without Outlook installation, you can also use this tool and save OST data file as PST format. To test its working functionality, you can firstly use its download edition, which allows you save 25 items from OST file to PST format without cost. To save bulk OST data files to PST files in a single process, you must buy the license key of the tool.