http://blogs.msdn.com/vsofficedeveloper/archive/tags/Office+Core/default.aspxTags: Office Coreen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/vsofficedeveloper/archive/2008/02/18/Office-File-Formats.aspxMon, 18 Feb 2008 16:58:00 GMT91d46819-8472-40ad-a661-2c78acb4018c:7778738VSOfficeDeveloper0http://blogs.msdn.com/vsofficedeveloper/comments/7778738.aspxhttp://blogs.msdn.com/vsofficedeveloper/commentrss.aspx?PostID=7778738<P>Developers working with Microsoft Office files can now freely download&nbsp;he specifications for both the Office 2007 Open Office XML (OOXML) Formats and the&nbsp;older Office 97-2003 Binary File Formats (BIFF), for Word/Excel/PowerPoint.&nbsp; Microsoft has agreed to cover both sets of formats under the Open Specification Promise (OSP) program.&nbsp; </P> <P>For information about the OSP program, visit this web site:<BR><A href="http://www.microsoft.com/interop/osp/" mce_href="http://www.microsoft.com/interop/osp/">Microsoft Open Specification Promise</A></P> <P>For download of the Office 2007 OOXML Specifications, visit:<BR><A href="http://www.ecma-international.org/publications/standards/Ecma-376.htm" mce_href="http://www.ecma-international.org/publications/standards/Ecma-376.htm">Ecma-376: Office Open XML File Formats </A><BR><A href="http://openxmldeveloper.org/" mce_href="http://openxmldeveloper.org">Open XML Developer Site</A></P> <P>For download of the Office 97-2003 BIFF Specifications, visit:<BR><A href="http://www.microsoft.com/interop/docs/officebinaryformats.mspx" mce_href="http://www.microsoft.com/interop/docs/officebinaryformats.mspx">Microsoft Office Binary (doc, xls, ppt) File Formats</A></P><img src="http://blogs.msdn.com/aggbug.aspx?PostID=7778738" width="1" height="1">Office Core