If you are searching for a solution to create OST file in Outlook, then take the help of third-party OST Converter software that helps you to convert unlimited OST file in Outlook PST file format. It allows you to batch import OST files to Outlook PST file format with complete details and attachments. There is no file size limitation, one can export a large size of OST file to PST format without any data loss. During the conversion process, the software keeps all the folder structures without any changes and data loss. It was compatible with all the latest and below versions of MS Outlook and Windows OS including Windows 11. You can also use the free demo version of the software without any cost.