Extract text from OLM files
To convert your OLM file to another format, you need Microsoft Outlook for Mac or other Database software.
To convert other file formats to the "Email Archive Container" file type, you need software like Microsoft Outlook for Mac or a similar tool.
OLM files are proprietary data archives created by Microsoft Outlook for Mac, serving as the primary storage vessel for local emails, contacts, calendars, and tasks. While efficient within the macOS ecosystem, the .OLM format is notoriously restrictive; it acts as a "black box" that cannot be opened by Microsoft Outlook for Windows, which relies exclusively on PST files. This incompatibility can create major obstacles for professionals migrating from Mac to PC or attempting to access legacy data without an active Microsoft 365 subscription.
Beyond cross-platform incompatibility, .OLM files are prone to corruption when they exceed large file size limits, and they lack native support on mobile devices or web browsers. To unlock your data, conversion is often the only viable path. For users moving to Windows, converting .OLM to PST is essential. For those switching to open-source clients like Mozilla Thunderbird, converting to MBOX is the standard solution. Legal and administrative teams needing to archive correspondence permanently should convert email threads to PDF/A, ensuring the content remains readable without specialized software.
Convert.Guru analyzes your OLM file, detects the exact format, and lets you read the text inside.
Users also converted OML, OLM 2, IOLM, CSV, MBOX, PST, ZIP, ICS, XML, HOL, ACSM, RVZ and G3D files.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our OLM converter.