INFO: Index Server: Documents That Are Supported by the Office Filter

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Article ID: 318326 - View products that this article applies to.
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SUMMARY

The Microsoft Office filter, Offfilt.dll, does not support all versions of Microsoft Office documents.

MORE INFORMATION

The following versions are supported:

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DocumentExtensionsComments
Microsoft Word.doc, .dotOffice 95 and later are supported. This does not include RTF or other formats saved as a .doc file.
Microsoft Excel.xls, .xlt, .xlb, .xltOffice 95 and later are supported.
Microsoft PowerPoint.ppt, .pps, .potOffice 97 and later are supported.
Binder.obdBinder files are not supported. Some earlier versions of the filter registered for this extension but the support never existed.
Thicket.htm, .htmlLimited support exists that is handled by the HTML filter.
Web Archive.mhtThis is not currently supported.


The Office filter looks at the first 4 bytes in the header of each file for a docfile0 signature. To manually check the signature, use a hex editor to open the file to determine whether the signature matches the following one:
D0 CF 11 EO
If this docfile signature does not exist, the file is not filtered by the Office filter. Files that are created in Microsoft Word for Microsoft Windows version 2.0 are an example of the files that do not contain the docfile signature, so they are not filtered. In addition, no error messages are logged when the document is not filtered.

Properties

Article ID: 318326 - Last Review: October 24, 2013 - Revision: 2.0
APPLIES TO
  • Microsoft Index Server 2.0
  • Microsoft Index Server 2.0
Keywords: 
kbnosurvey kbarchive kbinfo KB318326

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