Searching for a solution on how to export Offline OST format to PST? Don’t worry, try OST Export software, it is one of the best converter tools. This software can convert multiple Outlook.ost files to PST file format with all emails, contacts, calendars, tasks, notes, etc. along with attachments. MS Outlook installation is not required for the conversion process. There is no file size limitation, one can convert n number of files at a time without any data loss. It allows batch export Offline OST format to PSt without any data loss. It was compatible with all the latest and below versions of MS Outlook and windows 11. Demo version of the software also provided at free of cost.