Open OLM files in your browser
Everything Outlook for Mac exports, in one file. Read its emails right here, folder by folder, on a Mac, a PC or a phone. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your archive opens as a folder in the file list, with a folder for each account and mail folder, and each email you pick opens as mail apps show it.
- Every account and folder • Emails by date
- Each email • With its attachments
- Search • Find any email by its subject
- Export • Save as ZIP or Extract all
About OLM
Outlook for Mac exports a mailbox as an .olm file: a ZIP of every account's folders, each email written out as XML with its attachments beside it, along with contacts, calendars, tasks and notes. Outlook for Mac 2011 brought it in.
People get OLM files when they move from a Mac to Windows, leave a job or hand mail over in legal discovery, and only then find that Outlook on Windows can't import one: it reads PSTs, and an OLM opens only in Outlook for Mac.
Filepeek lists the archive's emails in the file list under their accounts and folders, by date and subject, and each email you pick opens in the mail reader with its attachments. Save as ZIP or Extract all writes them out as EML files any mail app opens. Contacts, calendars and notes stay in the file.
Outlook for Mac archive
.olm
Format
- MIME type
- application/octet-stream
- Made by
- Microsoft
- Released
- 2011
Inside the file
- Folders
- Each account's Inbox, Sent Items and your own
- Emails
- In HTML or text, with attachments
- Built on
- A ZIP of XML files
- Written by
- Outlook for Mac
Opens in every browser
Filepeek opens OLM files in Chrome, Edge, Firefox and Safari, however big the file. On their own, browsers download them, and only Outlook for Mac opens them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open OLM
- WindowsNo app opens it • Outlook on Windows only imports PSTs
- MacOutlook for Mac, with File, then Import
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open an OLM file on Windows?
Drop it on this page or choose Peek an OLM. Its folders open in the file list and each email opens when you pick it, with no Outlook for Mac needed.
Can I move my emails to another mail app?
Yes. Choose Export, then Save as ZIP or Extract all. Every email is saved as an EML file, which Outlook, Thunderbird and Apple Mail open.
What about my contacts and calendar?
Only the emails open. The contacts, calendars, tasks and notes in an OLM stay in it.