Try OST File Import Tool, an excellent conversion program for users to import contacts from OST file to Outlook contacts, CSV file, or VCF (vCard) file along with exact details without any changes. A user can efficiently use this tool on any latest and previous version of Windows OS to successfully import contacts from Outlook OST file a bulk mode at once with no one difficulty. Download and test the free demo edition of the OST File Import Tool while importing 25 contacts from each OST file to required format without cost. To bulk import contacts from Outlook OST file to CSV file, Outlook contacts or vCard contacts, you must but license version of the tool.