How to Open Outlook OST Files On Mac in 2025

[Ryancooper]

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.

[sonu2shukla]

Recoveryfix OST Viewer is a free & efficient tool for viewing and analyzing OST files. This OST Viewer tool allows users to open and preview OST files without the need for Outlook installation. The software provides a user-friendly interface to browse through emails, attachments, contacts, calendars, and other mailbox items. It also helps users identify any corruption or issues within the OST file. It's an ideal solution for anyone looking to access OST data without converting or repairing it.