I have used eSoftTools MBOX converter software for 30 days and the software converts my Opera mails to PST in a few minutes. The software also converts other email clients like thunderbird, apple mail, etc to convertible formats EML, EMLX, HTML, NSF, MSG, etc. The software provides 24*7 technical support but I do not face any technical issues with the software after 30 days of use. The software works smoothly in all versions of Windows operating systems like windows 7, windows 8, windows 8.1, and Windows 10.
Read More:- Export Opera Mail to PST