Microsoft on Friday said it has added Office binary formats to a list of technologies
that are protected against patent-violation claims, answering criticism from
some involved in the Office Open XML (OOXML) file-format standards process.
The OOXML format is being considered as an international standard by the ISO
(International Organization for Standardization), but translation between the
original Office binaries and OOXML is necessary for there to be seamless document
exchange between older versions of Office and Office 2007. Corporate developers
and makers of other office productivity products need access to the formats
in order to write converters between Microsoft's format and the possible standard.
Microsoft has listed binary file format specifications for Word, Excel and
PowerPoint -- that is, .doc, .xls and .ppt -- under the Open
Specification Promise (OSP). These file formats are the defaults in pre-Office
2007 versions of Office; Office 2007 was the first version to use OOXML as its
default file format.
Microsoft published the OSP in September 2006 as a promise that it would not
take any patent-enforcement action against people who want access to the specs
for technologies it has developed. Since then Microsoft has been periodically
adding to the list of OSP-protected specs, which can be found on the company's
Web site. In a press statement, Microsoft said that adding the Office binaries
to the list is to "promote interoperability between the binaries and Open
XML, and make Office Open XML accessible to an ever-wider group of users and
developers."
The move came out of discussion in the ISO around OOXML, as national standards
bodies requested more open access to the Office binaries, said Brian Jones,
an Office program manager, in a posting
on a company blog last month.
According to Jones, the specs for the binaries already had been available royalty-free
via e-mail to anyone who requested them, as outlined in an article in Microsoft's
Knowledge
Base. But since the national bodies were concerned with the steps someone
had to take to get access to the binary formats, Microsoft -- working with an
Ecma International technical committee, Ecma TC45 -- decided to make it easier
for people to get them, he said.
Microsoft has been working to fast-track OOXML through the ISO approval process
through Ecma, another international standards body, since November 2005. Ecma
approved OOXML in December 2006, but approval by the ISO has been more problematic.
A final vote on ISO is expected in March after an ISO ballot resolution meeting
for the OOXML format, scheduled for Feb. 25-29.
To help companies build connectors between the binaries and OOXML, Microsoft
on Friday also went live with an open-source
project on SourceForge to create software tools, guidance and show how a
document written using the binary formats can be translated to the current ISO
spec for OOXML, ISO/IEC DIS 29500. The resulting translators will be available
under the open-source Berkeley Software Distribution (BSD) license, and members
of the community are free to use the translators, submit bugs and feedback,
or contribute to the project as they wish, Microsoft said.
Translators already exist between the Office binary formats and OOXML's rival
file format, Open Document Format (ODF), which already is an approved ISO standard.
For example, the Sun ODF Plug-in for Microsoft Office enables conversion between
Microsoft Office documents to and from ODF.
