Read OST Files on Mac

OST Viewer

Open and access Offline folder files of MS Outlook OST files on macOS. The utility will give a platform to read OST file messages without Outlook installation.

  • View Multiple OST Files without any Cost
  • Quick & Instant Preview of OST files
  • Preserves Email formatting intact while processing
  • No external Application support required
  • Copy Email Content from the Software interface

Download Now100% Safe & Secure

Download Now100% Safe & Secure

100% Safe & Secured Tool to Read OST File Mac OS

Downloaded by 20,000 users and counting

View Outlook OST File in 3 Steps

Main Steps to Read OST Files without Outlook Application

Install the Software

With the set-up file, install the software to the Mac system. The installation process is quick and effortless. Then, launch the toolkit without the assistance of the MS Outlook applications.

Add OST Files

Further, start adding Outlook Offline folder OST files to the software interface using two different Add buttons. Either add files or a folder with multiple OST files in it.

Preview OST File on Mac

Soon all the files will be loaded to the right panel of the application. The files are loaded under the email component such as To, From, Subject, etc. Finally, read OST files on Mac.

Vital Aspects of OST Viewer for Mac

OST file reader application will give access to OST files on Mac OS without Outlook. Read multiple OST files for free. Get all the information of offline Outlook email files such as Attachments, From, To, Subject, and Date & time of Send and received mails.

Simple File Viewer

The utility is a very simple and direct application to read OST files on Mac OS. Users with or without any technical skills can install and operate the application with ease.

Quick Installation

With the *.dmg set-up file, install the software to the OS X computer without any hassle. There is no necessity for any application to use the tool to read OST files on Mac Machine.

100% Accuracy

Read Outlook OST files with complete accuracy. Load Offline Outlook email message files on the software panel with 100% accuracy without causing any alterations.

Multiple File Opener

The dual add option will let the user upload MS Outlook Exchange OST files to the OST Viewer application. As a result, multiple files can be read for free at once.

Read OST File without Outlook

Neither Outlook nor any other application is required to read OST files on Mac. The OST Viewer for Mac gives a space for the user to read files without the installation of Outlook.

Preserve Folder Hierarchy

OST files are offline folder files of MS Outlook. Read OST files by maintaining the folder hierarchy of the file intact. The folder structure will be preserved in the software interface.

Preview File with all Components

View OST email messages on the software interface. As soon as the files are scanned and loaded to the file opener toolkit, the email components will be displayed on the interface.

Able to Copy Email Messages

OST Viewer for Mac OS will display the message in the reading panel on the software interface. From there copy the email data and store it in a safe place for more.

Supports on Recent Mac OS

The file opener for Outlook offline files is compatible with all the recent editions of Mac OS above OS X Mountain Lion like 10.9 Mavericks, 10.10 Yosemite, OS X 10.11 El Capitan, etc.

System Requirements

Overview of Demo & Trial Edition OST Viewer,
prerequisites for the software, etc.

Minimum system requirement or specifications to install the MacXtra OST Viewer on Mac OS.

Software Name: MacXtra OST Viewer
Processor: Minimum 2.4 GHz Processor
RAM: Minimum 1 GB
Minimum Hard Drive Space: 100 MB of free space
Operating System: Mac OS Mountain Lion 10.8 and above edition.

Software Specifications

  • Support: 10.15 Catalina, 10.14 Mojave, 10.13 High Sierra, 10.12 Sierra, OS X 10.11 El Capitan, 10.10 Yosemite, 10.9 Mavericks, and 10.8 Mountain Lion
  • Processor: 1 GHz Processor (2.4 GHz is recommended).
  • RAM: 512 MB of RAM (1 GB is Recommended).
  • Hard Disk Space: 10 MB of Free Hard Disk Space Required.

Size: 9.8 MB, Version: 1.0

Download Now100% Safe & Secure

Download Now100% Safe & Secure

Lifetime Free Tool

The free Outlook OST file viewer gives a platform for the user to read *.ost files without any restrictions. Unlimited OST files can be accessed effortlessly.

Limitations of OST File Viewer

As the freeware application is to view the Outlook OST files on macOS, the tool does not have any export or convert options.

Request For Software Customization

If you need to customize MacXtra OST Viewer or need additional features, Quote Request

Frequently Asked Questions (FAQ)

Get in touch with our 24*7 Support Team for any queries related to OST File Opener

How to Read OST Files on Mac OS Machine?

Download the file viewer and carry out the steps mentioned here: -

  • Start the tool on any Mac OS edition above 10.8.
  • Add Outlook OST file to the software interface.
  • Tool scans and loads the file/folder.
  • Click on the required file/folder
  • All email message files will display and select any OST files.

No, the OST File reader will operate without the need for any external application.

No, for conversion download the upgraded version of the tool. Get the software OST File Converter for Mac

Yes. Since the tool is to open OST email files it does not possess any requirement of Outlook Exchange.

Client Review


Euskadi, Spain

This OST File viewer is an incredible tool to access Outlook files without Outlook. Simple, unique and works with ease. Above anything, the tool is free for a lifetime. I was able to open multiple files at once. The best tool so far.


Los Angeles, USA

I used one of the applications called OST Viewer. It is an amazing application. The online sites will always ask for email id and other information. While MacXtra didn’t ask. Freeware tool to read OST files on Mac OS. That itself is more than enough as a user.


Warsaw, Poland

Outstanding application to read OST files on Mac. Gets a quick preview. The tool is very simple tool use. I used it to view a large amount of OST files effortlessly. Every Mac customer must try the applications by MacXtra.