WholeClear OST to NSF Converter is a reliable software specially designed to convert OST files into NSF format quickly and safely. It supports all MS Outlook and Lotus Notes versions. All users can easily use this software because it has a user-friendly interface. It works with all Windows OS versions like 11, 10, 8, 7, Vista, XP, etc. It helps users convert Outlook OST mailbox data, including emails, contacts, calendars, attachments, tasks, and notes, to IBM Lotus Notes without losing any information.