OLK15MSGATTACH File – What is .olk15msgattach file and how to open it?

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OLK15MSGATTACH File Extension

Outlook 15 Attachment Data – file format by Microsoft

OLK15MSGATTACH is a file extension for Outlook 15 Attachment Data, a file type created by Microsoft for storing attachments in Outlook email messages. It is a binary file format that contains the attachment data, such as the file name, size, and content.

OLK15MSGATTACH File Format

An OLK15MSGATTACH file is a binary file format used to store attachment data for email messages in Microsoft Outlook 15. It contains the actual data of the attachment, such as images, documents, videos, or audio files. The file is typically created when an email message is sent or received with an attachment. It is stored separately from the email message itself, in a hidden folder within the Outlook data file (.pst).

Purpose and Use

The OLK15MSGATTACH file serves several important purposes. Firstly, it allows Outlook to store attachments efficiently, separating them from the email message text. This helps in managing storage space and ensures that attachments do not bloat the message size. Secondly, it enables Outlook to quickly access and render attachments when viewing or replying to email messages. Thirdly, OLK15MSGATTACH files facilitate the secure transfer of attachments over email networks, as they are encoded using a proprietary format that prevents unauthorized access. Additionally, the file format is compatible with various third-party email clients and tools, allowing for seamless handling of attachments across different platforms.

Method 1: Using Microsoft Outlook 2016 or Later

To open a .OLK15MSGATTACH file using Microsoft Outlook 2016 or later, follow these steps:

  1. Open Microsoft Outlook.
  2. Click on the “File” tab.
  3. Select “Open & Export.”
  4. Click on “Open Outlook Data File.”
  5. Browse to the location of the .OLK15MSGATTACH file.
  6. Select the file and click “Open.”
  7. The attachment will be opened in a new window.

Method 2: Using a Third-Party Tool

There are several third-party tools available that can open .OLK15MSGATTACH files. One such tool is PST Viewer Pro. To use this tool:

  1. Download and install PST Viewer Pro.
  2. Open PST Viewer Pro.
  3. Click on the “File” menu.
  4. Select “Open.”
  5. Browse to the location of the .OLK15MSGATTACH file.
  6. Select the file and click “Open.”
  7. The attachment will be opened in the PST Viewer Pro window.

Outlook 15 Attachment Data

OLK15MSGATTACH files are Outlook message attachment files that store attachments included in Microsoft Outlook 2013 and Outlook 2016 email messages. They are compressed using OLE package technology to store data in a hierarchical binary format. OLK15MSGATTACH files may contain various types of attachments, such as images, documents, spreadsheets, and presentations. The attachments are stored in a single file, making it easy to manage and retrieve them.

Accessing OLK15MSGATTACH Files

OLK15MSGATTACH files are associated with Outlook email messages. They can be accessed through the Outlook application by opening the email message and selecting the attachment. The attachment can be saved to a local folder or opened directly within the Outlook application. It is important to note that OLK15MSGATTACH files are Outlook-specific and can only be fully utilized within the Outlook environment. When shared with users who do not have Outlook installed, the attachments need to be extracted from the file for easy access.

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