Icon of program: MSG Viewer for Outlook

MSG Viewer for Outlook for Mac

By Element26Trial versionUser Rating

Key Details of MSG Viewer for Outlook

  • Open MSG, OFT, and Winmail.dat files easily on your Mac
  • Last updated on 05/12/19
  • There have been 0 updates within the past 6 months
  • The current version has 0 flags on VirusTotal badge_icon

Editors' Review

Download.com staff

Outlook MSG Viewer for Mac makes it possible for you to open otherwise incompatible Outlook MSG files on your Mac with no extra steps or conversions. All you have to do is install the program, and you'll immediately be able to access messages that just showed up as a jumbled mess previously.


Quick access: With this program in place, you can access MSG files quickly. It delivers on its promise of producing legible messages on your Mac from otherwise unreadable files.

Attachments and batches: This program will also convert original attachments to messages it opens, so you can see all of the information the sender included quickly. And it supports batch processing of files, so you don't have to go through and open each message individually.


Uninviting interface: This app's interface is not at all accessible to inexperienced users. It mostly consists of pop-up dialog windows containing technically-worded information with no explanation.

No help: The User Manual link in this program really just takes you to the app's sales page. Here you'll find all the information about what the app can do, but not how to use it once you have it installed. The FAQs page is more of the same, so your only real option for help is to email support. But there is nothing resembling a Quick Start Guide or anything like that.

Bottom Line

Outlook MSG Viewer does make it possible to view MSG files on your Mac. It could be easier to use, but it performs its stated function well. The trial version of the program includes a 20-second delay before opening each message, and you can remove this limitation with a purchase of $9.95.

Editors' note: This is a review of the trial version of Outlook MSG Viewer for Mac 2.1.

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Full Specifications

  • Use timestamp from EML file when converting to MSG
  • Amended logic used to determine how to parse streams used for HTML vs. RTF vs. TXT
  • In rare cases, MSG with specific or missing encoding types would appear blank or missing content
  • QuickLook and thumbnail generation, particularly on macOS 10.14
  • Minimum macOS requirement raised to 10.9
  • Removed 32-bit binaries
  • Sparkle framework to 1.21.3 (non-App Store)
  • Save window position of application on subsequent launches
  • Support for decoding OLE objects stored in TNEF DAT files
  • Enabled macOS 10.14 hardened runtime (non-App Store)
May 12, 2019
Latest update
April 24, 2020
Operating System
Mac OS X
Additional Requirements
macOS Mojave | macOS High Sierra | macOS Sierra | OS X El Capitan | OS X Yosemite | OS X Mavericks | OS X Mountain Lion | OS X Lion | OS X Snow Leopard|
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Developer's Description

Open MSG, OFT, and Winmail.dat files easily on your Mac.
MSG Viewer for Outlook (was Outlook MSG Viewer) lets you open those frustrating Microsoft Outlook MSG files on your Mac. MSG files are often generated by the PC version of Microsoft Outlook. This proprietary format is easily read on other PCs, but it is unrecognizable on Macs -- even if you are using Microsoft Outlook for Mac or Apple Mail. With this easy-to-use program, you'll be able to open all of those MSG, OFT, or Winmail.dat files seamlessly in your favorite Mac email clients.