How to Open Outlook OST Files On Mac in 2025

[Rajsingh]

Opening OST files on Mac manually is a complex process since Outlook on Mac doesn’t natively support the OST file format. To achieve this, you would need to first convert the OST file into a compatible format like PST using a Windows PC with Outlook installed. Once converted, transfer the PST file to your Mac and import it into Outlook for Mac.

However, this manual method comes with several challenges. Firstly, you need access to a Windows system with Outlook installed. Secondly, the process is time-consuming and prone to errors, especially if the OST file is large or corrupted. Furthermore, technical expertise is required to avoid data loss or incomplete conversions.

To simplify this process, Migrate Cloud Data OST Viewer Tool offers an efficient solution. This tool allows you to open, view, and convert OST files seamlessly on Mac without requiring Outlook installation. Its intuitive interface makes it easy for even non-technical users to access OST data, and it ensures data integrity during the conversion. With features like selective conversion and preview options, it’s a reliable choice for handling OST files. Save time and effort by opting for this advanced tool to open OST files effortlessly on Mac.

opening an OST file on a Mac can be challenging, but it is possible with the right tools and methods. One approach involves manually converting OST to PST and then importing the PST file on an Outlook for Mac, though this can be time-consuming. Alternatively, using an OST file viewer, a specialized tool designed for this purpose, allows users to open OST files on a Mac directly without needing Outlook. This professional solution simplifies the process, saving time and effort.

[deepti]

If you need to open an OST file without using an Exchange Server, BLR OST File Viewer is an ideal option. This free program lets you quickly access and view the contents of OST files without changing their folder structure, formatting, or metadata. You may even preview numerous OST files at once, including big files, and examine data kinds such as emails, calendars, contacts, events, and journals. The software is entirely compatible with all Microsoft Outlook versions, including 2016, 2013, 2010, 2007, and 2003. This OST to PST converter tool also help to migrate and convert email data.

[gregory]

Use the ToolsGround OST to PST Converter Tool if you need to open OST files on Windows OS. This software converts OST to PST, OST to EML, OST to EMLX, and OST to MBOX files. It migrates multiple emails from Outlook OST into PST files with attachments, Contacts, Calendars, Notes, etc at once. This tool supports all windows os and MS Outlook editions. This application shows the preview of the OST files before the migration. Try the free demo version to test the app.