How to Open Outlook OST Files On Mac in 2025

[mariahirthe]

If you want to open or view OST files without Outlook and Exchange Server, I advise using CubexSoft OST Viewer. It allows users to read OST Files and save them into PST and other file formats like TXT, HTML, PDF, etc. Moreover, this tool can help users to view inaccessible OST files with all email attachments. You can use this software for free and it efficiently runs on all versions of Windows OS.