Applies to: Exchange Server 2013
Topic Last Modified: 2013-02-12
In Microsoft Exchange Server 2013 and Exchange Online, Exchange Search includes filters for indexing most common types of file formats included as message attachments. You can also install filters to index additional file types.
Note: |
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In Exchange 2013, it isn’t required to install and register Microsoft Office Filter Pack. |
When managing or using Exchange Search and the dependent features (such as In-Place eDiscovery), consider the difference between unsearchable items and file formats that are disabled for indexing or contain content that can’t be indexed:
- Unsearchable items When Exchange Search
can't index a particular file type for any reason (for example, if
a filter isn't installed), the search for the file type fails.
Messages containing such attachments are marked as partially
indexed. Unsearchable items can be retrieved using the Get-FailedContentIndexDocuments
cmdlet. When copying In-Place eDiscovery search results to a
discovery mailbox, you can include unsearchable items.
Note: Although a message attachment may be unsearchable, the message subject, message body and other metadata may be indexed and returned in searches. - File formats with content that can’t be
indexed Certain file types such as Windows
Media Video (WMV) don't contain content that can be indexed and
therefore aren't indexed. Messages containing attachments of such
file types aren’t returned as unsearchable items in In-Place
eDiscovery searches.
- Disabled file formats In on-premises organizations, an
administrator can disable indexing of a specified file format.
Messages that contain an attachment that is of a disabled format
aren’t returned as unsearchable items.
For additional management tasks related to Exchange Search in on-premises organizations, see Exchange Search Procedures.
Default filters
The following table lists the default search filters installed on an Exchange 2013 Mailbox server and in Exchange Online. You can retrieve the list of default filters by using the Get-SearchDocumentFormat cmdlet.
Filter | File extension |
---|---|
Email message |
.eml |
Graphics Interchange Format |
.gif |
JPEG |
.jpg |
Microsoft Excel |
.xls, .xlt, .xlsx, .xlsm, .xlb, .xlc, .xlsb |
Microsoft InfoPath |
.infopathml |
Microsoft Office Binder |
.obt, obd |
Microsoft PowerPoint |
.pptx, .pptm, .ppt, .ppsx, .ppsm, .pps, .ppam, .potm, .pot, .potx |
Microsoft Publisher |
.pub |
Microsoft Word |
.doc, .docm, .dotx, .dotm, .dot, .docx |
Microsoft XML Paper Specification |
.xps |
OneNote |
.one |
OpenDocument Presentation |
.odp |
OpenDocument Spreadsheet |
.ods |
OpenDocument Text |
.odt |
Outlook Item |
.msg |
Portable Document Format |
|
Rich Text |
.rtf |
Text |
.txt |
vCalendar |
.vcs |
vCard |
.vcf |
Visio |
.vdw, .vsd, .vss, .vst, .vsx, .vtx, .vssx, .vssm, .vsdm, .vstx, .vstm, .vdx |
Web archive |
.mht |
Web page |
.html |
XML document |
.xml |
ZIP archive |
.zip |