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Attachment Preview, a new feature in the 2007 Microsoft Office system, allows you to preview some attachment file types without opening them. The attachment previewers that come with the 2007 Office release are on by default. For more information on using attachment previewers, see Preview attachments.

 Note   To preview an attached file created in an 2007 Microsoft Office system application, you must have that 2007 Office application installed on your computer. For example to preview a Word attachment, you must have Word installed. To preview an Excel attachment, you must have Excel installed.

 Important   By default, Microsoft Outlook blocks potentially unsafe attachment files (including .bat, .exe, .vbs, and .js files) that can contain viruses. You cannot view or access a blocked attachment file, but a list of blocked attachment files appears in the InfoBar (InfoBar: Banner near the top of an open e-mail message, appointment, contact, or task. Tells you if a message has been replied to or forwarded, along with the online status of a contact who is using Instant Messaging, and so on.) at the top of your message. You should preview or open attachments from trustworthy sources only.

• Find the default Outlook attachment previewers

• View the list of Outlook attachment previewers

• Find third-party attachment previewers

Find the default Outlook attachment previewers

To view the Outlook attachment previewers, do the following:

• In Outlook, on the Tools menu, click Trust Center, and then click Attachment Handling.

If you want to make changes to the default previewer settings on your computer, you can turn the attachment previewers on or off.

• To turn off   all attachment previewers, click Turn off Attachment Preview.
• To turn off   a specific attachment previewer, click Attachment and Document Previewers, clear the check box for a previewer you want to turn off, and then click OK.

• To turn on  attachment previewers, clear the Turn off Attachment Preview check box, and select attachment previewers under Attachment and Document Previewers.

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List of Outlook attachment previewers

Attachment previewers that come with the 2007 Microsoft Office system allow you to preview the following files in Microsoft Office Outlook 2007:

• Microsoft Office Outlook 2007 items.
• Microsoft Office Word 2007 documents
• Microsoft Office PowerPoint 2007 presentations
• Microsoft Office Excel 2007 worksheets
• Microsoft Office Visio 2007 drawings
• Images and text files

 Important   To help protect you from malicious code, active content embedded in attachments (including scripts, macros, and ActiveX controls) is disabled during a preview. You should preview or open attachments from trustworthy sources only.

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Find third-party attachment previewers

Third-party software vendors may provide their own previewers that support additional attachment file types; you can use your Web browser to search the Web to find additional information. When available, you can download and install previewers to preview additional file types in Outlook.

 Important   To help protect you from malicious code, active content embedded in attachments (including scripts, macros, and ActiveX controls) is disabled during a preview. You should preview or open attachments from trustworthy sources only.

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