Know More About the OLM File Extension

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olm file format

OLM File: OLM file format is a file type that used to store the user’s database in local storage drives. Basically it is used by Mac OS users. After the huge success of Windows Outlook versions and Microsoft Entourage, Microsoft Corporation decided to launch a version for Mac OS. It came to existence in October 2010 as named Outlook for Mac or Outlook 2011. Apart from OST and PST, the Mac Outlook uses the OLM file format to store the user’s data at local storage drives. It is enough capable to store MS Outlook contacts, calendars, emails, journals, notes, tasks (to-do’s), folder, sub-folder, reminders, appointments, etc.

Simple Specification of OLM file Format

Specification Details

Category: File Format
File Category: Binary
Hex Signature: N/A
MIME Type: Application/octet-stream
File Type: Database file.
Developer: Microsoft Corporation
Extension: .olm
Supported OS Platform: Mac OS

 

Mac Outlook only supports the OLM files, therefore, it is inaccessible in any other OS platform because Windows Outlook supports only PST format (default). The maximum file size of OLM is not defined but it should not be more than 2 GB to reduce the chances of file corruption.

Default location of Outlook for Mac OLM file format:

Database file: ~/Document/ Microsoft User Data/ Office 2011 Identities/ Main Identity/ File_Name.olm

Storage Folder: ~/Document/ Microsoft User Data/ Office 2011 Identities/ Main Identity/ Data Records/

Software Require to open OLM file:

For Mac:

  • Outlook for Mac 2011.

For Windows:

  • OLM Viewer
  • OLM to PST Converter

Conclusion: In this article, here we talked about what is OLM file and how to open it in different Operating Systems. Additionally, we described the location of the .olm file. If you have any suggestions related to the article, please comment on it in the comment box or if you still have any doubt or query please contact our support forum.

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