You can use vMail OST to PSTConverter for Mac this application quickly to export and migrate Outlook OST file to PST file format. The Convert OST to PST on Mac software allows users to convert more than one OST file on a single click only with important attachments. This tool recovers and corrupt OST database file. The Convert OST to PST on Mac Software supports all Mac OS versions like- 10.14, 10.13, 10.12, and 10.11. For getting more material about this program, you can free to download it using a free trial edition facility.