Read attachments
Sometimes, senders may attach files in their emails. When you receive these emails, you can save the attachments to read them, or preview them in the "Reading Pane" or message window directly. This tutorial will show you how to read attachments directly and configure attachment preview settings as well.
- Preview attachments in the Reading Pane or message window
- Read attachments in their default programs
- Turn on or off attachment preview
Note: Methods introduced on this page apply to Microsoft Outlook 2019 desktop program in Windows 10. The instructions may vary slightly depending on the version of Microsoft Outlook and the Windows environment.
Preview attachments in the Reading Pane or message window
When reading an email in the "Reading Pane" or message window, you can click the specified attachment below the subject to preview it directly.

Notes: When previewing an attachment in the "Reading Pane" or message window, you can click "Back to message" above the attachments to return to the message content.

Read attachments in their default programs
When reading an email in the "Reading Pane" or message window, double-click the specified attachment to open it in its default program and then read it in depth.
Turn on or off attachment preview
If you need to prevent attachments from being previewed in the "Reading Pane" or message window, you can turn off the attachment preview. In addition, you can turn off the attachment preview for specific file types only.
1. Click "File" > "Options".
2. In the "Outlook Options" dialog, click "Trust Center" in the left bar, and then click the "Trust Center Settings" button.

3. In the "Trust Center" dialog, you can turn off or on the attachment preview as follows:
(1) To turn off the attachment preview for all types of attachments:
- Click "Attachment Handling" in the left bar.
- Tick the "Turn off Attachment Preview" option.

Tips: Clearing the "Turn off Attachment Preview" option will enable the attachment preview.
(2) To turn off the attachment preview for a specific file type only (e.g., Microsoft Visio drawings):
- Click "Attachment Handling" in the left bar.
- Click the "Attachment and Document Previewers" button.
- In the "File Previewing Options" dialog, uncheck the specified file type (e.g., "Microsoft Visio previewer") and click the "OK" button.

Tips: Ticking file types in the "File Previewing Options" dialog will enable previewing these types of attachments.
4. Click the "OK" buttons successively to save the settings.
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