I am using eSoftTools MBOX Converter software to export Opera Mail to PST. Till now i am not facing any issue in the software to export opera mail to PST. The software graphic and user interface are very user friendly. The software provides 24*7 technical help but till now I am not facing any technical error in the software. The software can export a single or multiple opera emails to an PST account at one time. Free demo versions of the software export up to 25 emails from Opera emails to PST and other convertible formats like HTML, Gmail and Yahoo email etc. The software works properly in all versions of Windows operating systems.