Learn How to Convert OLM File to MSG in Bulk At Once?

Sarabjeet Kaur | email conversion file conversion how to outlook for mac software | 4 minutes read | Last updated on May 24th, 2025,
how to convert olm file to msg in bulk

Summary– Do you need to convert OLM file to MSG in bulk without Outlook on Mac & Windows OS? And, don’t know the best solution? Don’t worry anymore, here in this blog, we’ve discussed the quick and robust solutions to perform this conversion task.

OLM is a data file format, generated by Outlook for Mac to save contacts, calendars, emails, notes, and other user’s mailbox data. On the other hand, MSG files are supported by Microsoft Windows Outlook to save a single email message to move, manage, and store MS Outlook database. If you’re switching from OLM (Outlook for Mac) to Outlook MSG, you might need to migrate your Mac OLM email messages into an MSG file that is supported by the Windows Outlook program.

Why Do Users Need to Convert OLM File to MSG File?

  • MSG files are accessible and simple to use.
  • The MSG file is independent of the platform.
  • The text formatting options in the Outlook MSG file make it simple to show the data.
  • It makes it possible to export, archive, and save various files in one location.
  • This file type scans every file before storing.

How to Convert an OLM File to MSG File using Free Manual Approach?

Yes, there is also a manual method through which you can get your emails from OLM mailbox into MSG file. But because of its uncertainty, it is not recommended for saving process from OLM to MSG with batch email files. You can try the manual process with some OLM emails so that you can view the relevancy of this process.

There are lots of technical steps which can be performed only by professionals. And, also takes a long time for the completion of the process. So most of the users want to search the safe and ideal way to convert all OLM emails into MSG format including all attachments and other details.

Professional OLM to MSG Tool to Convert OLM File to MSG File with Attachments

BitData Migration OLM Converter for Mac and Windows OS is a professional third-party utility that provides a quick solution to convert batch OLM files in MSG format at once. The tool is accessible to the Windows operating systems of 32 bit and 64 bit. It also supports all the Mac editions such as Sonoma, Ventura, Monterey, Big Sur, Catalina, Mojave, High Sierra, Sierra, El Capitan, Yosemite, etc.

OLM to MSG Converter accurately saves OLM files in MSG files. It keeps all the mail properties of email files throughout the conversion procedure. The hierarchy of Mac Outlook OLM files/folders also remains intact. It saves OLM mailbox data with emails, contact, calendar, notes, attachments, and journals to Outlook MSG format without difficulty. Both technical and non-technical users can easily operate the software.

OLM to MSG Migration Tool is the best way to Outlook for Mac export email as MSG format. It allows you to save multiple Outlook Mac files to MSG files in just one-time processing and saves your time. The software helps in providing complete conversion results in just a few minutes.

Steps to Know How to Convert OLM File to MSG in Bulk without Microsoft Outlook

  1. Start with the downloading and installing procedure of the OLM to MSG Converter.
  2. Now, add the OLM files/folder with the help of Select File (s) or Select Folder (s) options.
  3. Select the output option as MSG from the next screen of the software.
  4. Select the Destination Path where all selected data will be saved as MSG file format.
  5. Click on the Convert option to start the process and then wait for the last completion message.

With the help of these steps of the tool, any user can easily understand how to convert OLM file to MSG in bulk along with all attachments, emails, contacts, calendars, journals, notes, etc. You can operate this software on any Windows OS which includes Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 7, Windows XP, Windows Vista, and all other Windows OS. It also supports all macOS editions including the latest macOS 15. This can retain the structural elements of every selected OLM file so that all users can understand the converted files without any help from the professional users.

Last Verdict

After all this discussion, it is now easy for all users to know how to convert an OLM file to MSG file format with a bulk data. You can utilize the tool with its free edition which can perform the same process with the first 25 items from the selected Outlook Mac mailbox. The complete procedure can be performed through the help of its licensed edition of the software.

Convert OLM File into PST File Directly

If you want to convert an OLM file into a PST file then you can utilize the best software that is the OLM to PST Converter. This software allows users to move the complete Mac OLM emails to PST format directly. You must try this software as it can also move Outlook Mac OLM files into various file formats and other cloud applications without any error of loss.