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File types and IFilter reference (Office SharePoint Server)

SharePoint 2007

Updated: September 11, 2008

Applies To: Office SharePoint Server 2007

Updated: 2008-09-11

For the crawler to crawl a content item, the following must be true:

  • The file type, identified by the three or four letter file name extension, must be on the Manage File Types page in Search Administration.

  • The index server must have an IFilter installed for that file type.

  • The file name extension must be associated with the IFilter on the index server.

Microsoft Office SharePoint Server 2007 includes several IFilters. However, some IFilters that install with Office SharePoint Server 2007 do not add the corresponding file name extension to the Manage File Types page. In this case, you only have to add the file name extension to the Manage File Types page. Additionally, most file types are associated with an IFilter when the IFilter is installed on the index server. For steps on how to associate some file types with the correct IFilter on the index server, see Install the Microsoft Filter Pack (Office SharePoint Server 2007).

Additional IFilters are available from Microsoft and third-party vendors. If necessary, software developers can create IFilters for new file types. If there is no IFilter for a file type that you want to crawl, the index in Office SharePoint Server 2007 can only include the file’s properties, and not the file’s content. For more information, see About IFilters (Office SharePoint Server 2007).

The following table lists the file types supported by the IFilters that are installed by default, which file types are on the Manage File Types page by default, and which file name extensions are associated with an IFilter on the index server.

File name extension Default association Automatically included in Manage File Types page

ascx

Yes

Yes

asm

Yes

No

asp

Yes

Yes

aspx

Yes

Yes

bat

Yes

No

c

Yes

No

cmd

Yes

No

cpp

Yes

No

css

Yes

No

cxx

Yes

No

def

Yes

No

dic

Yes

No

doc

Yes

Yes

docm

Yes

Yes

docx

Yes

Yes

dot

Yes

Yes

eml

Yes

Yes

exch

No

Yes

h

Yes

No

hhc

Yes

No

hht

Yes

No

hpp

Yes

No

hta

Yes

No

htm

Yes

Yes

html

Yes

Yes

htw

Yes

No

htx

Yes

No

jhtml

No

Yes

jsp

No

Yes

lnk

Yes

No

mht

Yes

Yes

mhtml

Yes

Yes

mpx

Yes

No

msg

Yes

Yes

mspx

No

Yes

nsf

No

Yes

odc

Yes

Yes

one

No

No

php

No

Yes

pot

Yes

No

pps

Yes

No

ppt

Yes

Yes

pptm

Yes

Yes

pptx

Yes

Yes

pub

Yes

Yes

stm

Yes

No

tif

Yes

Yes

tiff

No

Yes

trf

Yes

No

txt

Yes

Yes

url

No

Yes

vdx

No

Yes

vsd

No

Yes

vss

No

Yes

vst

No

Yes

vsx

No

Yes

vtx

No

Yes

xlb

Yes

No

xlc

Yes

No

xls

Yes

Yes

xlsm

Yes

Yes

xlsx

Yes

Yes

xlt

Yes

No

xml

Yes

Yes

See Also

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