Opera Mail is an integrated news and email client application with the Opera Internet Suite. It provides users rich email-based functionalities like support for POP3 & IMAP accounts, contact manager, RSS feeds, spam filtering, etc. Though a light-weighted email client with an interactive GUI, Opera lacks specific capabilities that other email applications are well-versed with.

As a result of several disadvantages, users are shifting to a much more robust platform- MS Outlook. The features offered by this platform are unmatched by any other. Despite communication being their primary function, Opera Mail and Outlook are two distinct email clients. Opera uses MBOX files, while Outlook uses PST format to store their user’s valuable data. The transfer process is impossible without a direct Opera mail converter software since Opera doesn’t support other email applications.

Reasons to convert Opera Mail to Outlook-

  • Opera cannot be set as the default email client in Windows 10 systems.
  • The synchronization process is slow as compared to other platforms.
  • Users always face issues while adding plug-ins, widgets, extensions, and other integrated programs.
  • Fewer constant updates aim at improving.
  • The basic functioning and response time are also slow.
  • Outlook allows individuals to access multiple email accounts at a single interface.
  • Outlook has other added features to manage and organize email data.
Locate the source file-

To migrate the mailbox data from Opera to Outlook, first, you need to find the exact location of Opera’s source database file. Typically, the data is stored in a single database file with MBS as the file extension. MBS is a variant of the MBOX file format. If you are using Opera v15 on a Windows 7 platform, you can locate the database file at the given location:

“C:\Users\name of the machine\AppData\Local\Opera\Opera\Mail”

Method to convert Opera MBOX files to Outlook’s PST-

Once you have found the source database file, you can use a reliable MBOX Opera mail converter tool to convert the file into Outlook’s supported format. In this regard, we have highlighted the working of an efficient third-party software Kernel for MBOX to PST Converter. Here is how it works:

  1. Launch the MBOX to Outlook PST converter tool and click Browse to locate Opera Mail’s source database file. Launch MBOX to PST converter software
  2. Select the required MBS file/folder and click OK. Once the file is added, click Finish. Add files to convert
  3. Preview the email contents by clicking on the mailbox hierarchy on the left-hand side panel; click Save. Add folder containing the Opera Mail .mbs files
  4. Select the resultant format as PST File (MS Outlook) and click Next. Select file and open
  5. Apply filters to save specific data for your converted PST file. Click Next. Click finish
  6. In case your selected MBS file is large, you can manage the size of your converted PST by using the Split option. Choose the desired partition from the drop-down available under the Split option. You can also add a prefix to the file name in order to give the file a unique identity. Click Next anyways. Click on saving option
  7. Click Browse to provide a destination path to save the converted file and click on the Finish button to execute the conversion. Select PST as an output type
  8. Once the conversion is completed, the resultant file is saved to the specified location. Click on OK to finish the task. Apply filter option


Opera Mail relies on MBOX file format while Outlook on PST keeps a store of all the data. Due to the incompatibility of Opera with other email platforms, there are no manual methods capable of making a batch of MBOX files from Opera Mail to Outlook PST. The only risk-free solution is to make the most of the Opera mail converter, which will directly complete the transfer process.