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<sect1 id="kword-file-format">
<sect1info>
<authorgroup>
<author>
<firstname>Mike</firstname>
<surname>McBride</surname>
</author>
<!-- TRANS:ROLES_OF_TRANSLATORS -->
</authorgroup>
</sect1info>
<title>&kword; file format</title>
<indexterm><primary>&kword;</primary><secondary>file format</secondary></indexterm>
<para>&kword; uses two open source, independently developed standards for
its file format. The combination was chosen for its balance between
convenience and open development models.</para>
<para>First, it should be noted that all &kword; files are multiple &XML;
files that are compressed to reduce their space requirements. </para>
<para>Select the &kword; version you are interested in:</para>
<itemizedlist>
<listitem><para><link linkend="kword-file-format-11">&kword; 1.1 and earlier</link>.</para></listitem>
<listitem><para><link linkend="kword-file-format-12">&kword; 1.2</link>.</para></listitem>
<listitem><para><link linkend="kword-file-format-13">&kword; 1.3</link>.</para></listitem>
</itemizedlist>
<sect2 id="kword-file-format-11">
<title>&kword; 1.1 and earlier</title>
<para>The &XML; files are compressed into a single file using the same
algorithm as used by <ulink
url="http://www.gnu.org/software/tar/tar.html"><application>tar</application></ulink>.</para>
<para>You can uncompress the files with the following command:</para>
<screen width="40">
<prompt>%</prompt> <userinput><command>tar -xzvf </command><replaceable>filename</replaceable></userinput>
</screen>
<para>This will expand the &kword; document file into its component
files.</para>
<para>The text portion of all &kword; files are &XML; (eXtensible Markup
Language) files.</para>
<note><para>For more information on &XML; documents, processors and
technology, please visit <simplelist> <member><ulink
url="http://www.w3.org/XML/">World Wide Web Consortium &XML;
pages</ulink></member> <member><ulink
url="http://www.xml.org/xml/resources_cover.shtml">XML.org Resource
Guide</ulink></member> <member><ulink url="http://www.ucc.ie/xml/">The &XML;
FAQ</ulink></member> </simplelist></para></note>
<para>All &kword; documents consist of at least two &XML; files:</para>
<variablelist>
<varlistentry>
<term><filename>maindoc.xml</filename></term>
<listitem>
<para>This file contains the bulk of the &kword; text, tables and formula
information. It is marked with &XML; tags according to the official DTD. A
copy of the &kword; 1.1 DTD is located at: <ulink
url="http://www.koffice.org/DTD/kword-1.1.dtd">http://www.koffice.org/DTD/kword-1.1.dtd</ulink>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>documentinfo.xml</filename></term>
<listitem>
<para>This file contains the document information. This is information
entered into the dialog boxes when selecting
<menuchoice><guimenu>File</guimenu><guimenuitem>Document
Information</guimenuitem> </menuchoice> from the menubar. This information
is useful for tracking authors, contact information &etc;</para>
<para>The DTD for &koffice; 1.1 is located at: <ulink
url="http://www.koffice.org/DTD/document-info-1.1.dtd">http://www.koffice.org/DTD/document-info-1.1.dtd</ulink>.</para>
</listitem>
</varlistentry>
</variablelist>
<para>In addition, there may be other files included in the &kword; document
file. Pictures, embedded documents and other binary information are stored
within the &kword; document as separate files.</para>
<para>For more specific information on &kword; file storage or other
internal information, please see <ulink
url="http://www.koffice.org/developer">The KOffice API</ulink> and the
<ulink url="http://developer.kde.org">General &kde; developer information
pages</ulink>.</para>
</sect2>
<sect2 id="kword-file-format-12">
<title>&kword; 1.2</title>
<para>The text files are compressed into a single file using the same
algorithm as used by <ulink
url="http://www.info-zip.org/pub/infozip/Zip.html"><application>zip</application></ulink>.
This change was made because of its broad use in other open source office
suites and its improved performance with lower memory requirements.</para>
<para>You can uncompress the files with the following command:</para>
<screen width="40">
<prompt>%</prompt> <userinput><command>unzip </command><replaceable>filename</replaceable></userinput>
</screen>
<para>This will expand the &kword; document file into its component
files.</para>
<para>The text portion of all &kword; files are &XML;
(eXtensible Markup Language) files.</para>
<note><para>For more information on &XML; documents, processing and
technology, please visit <simplelist> <member><ulink
url="http://www.w3.org/XML/">World Wide Web Consortium &XML;
pages</ulink></member> <member><ulink
url="http://www.xml.org/xml/resources_cover.shtml">XML.org Resource
Guide</ulink></member> <member><ulink url="http://www.ucc.ie/xml/">The &XML;
FAQ</ulink></member> </simplelist></para></note>
<para>All &kword; documents consist of at least three files:</para>
<variablelist>
<varlistentry>
<term><filename>maindoc.xml</filename></term>
<listitem>
<para>This file contains the bulk of the &kword; text, tables and formula
information. It is marked with &XML; tags according to the official
DTD.</para> <para>A copy of the &kword; 1.2 DTD is located at: <ulink
url="http://www.koffice.org/DTD/kword-1.2.dtd">http://www.koffice.org/DTD/kword-1.2.dtd</ulink>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>documentinfo.xml</filename></term>
<listitem>
<para>This file contains the document information. This is information
entered into the dialog boxes when selecting
<menuchoice><guimenu>File</guimenu><guimenuitem>Document
Information</guimenuitem> </menuchoice> from the menubar. This information
is useful for tracking authors, contact information etc.</para>
<para>The DTD for &koffice; 1.2 is located at: <ulink
url="http://www.koffice.org/DTD/document-info-1.2.dtd">http://koffice.kde.org/DTD/document-info-1.2.dtd</ulink>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>mimetype</filename></term>
<listitem>
<para>This file contains the mimetype for &kword; files. This information
is used by &kde; to determine that this is a &kword; file.</para>
<para>This file always contains:
<emphasis>application/x-kword</emphasis></para>
</listitem>
</varlistentry>
</variablelist>
<para>In addition, there may be other files included in the &kword; document
file. Pictures, embedded documents and other binary information are stored
within the &kword; document as separate files.</para>
<para>For more specific information on &kword; file storage or other
internal information, please see <ulink
url="http://www.koffice.org/developer">The KOffice API</ulink> and the
<ulink url="http://developer.kde.org">General &kde; developer information
pages</ulink>.</para>
</sect2>
<sect2 id="kword-file-format-13">
<title>&kword; 1.3 (current version)</title>
<para>The text files are compressed into a single file using the same
algorithm as used by <ulink
url="http://www.info-zip.org/pub/infozip/Zip.html"><application>zip</application></ulink>.
This change was made because of its broad use in other open source office
suites and its improved performance with lower memory requirements.</para>
<para>You can uncompress the files with the following command:</para>
<screen width="40">
<prompt>%</prompt> <userinput><command>unzip </command><replaceable>filename</replaceable></userinput>
</screen>
<para>This will expand the &kword; document file into its component
files.</para>
<para>The text portion of all &kword; files are &XML;
(eXtensible Markup Language) files.</para>
<note><para>For more information on &XML; documents, processing and
technology, please visit <simplelist> <member><ulink
url="http://www.w3.org/XML/">World Wide Web Consortium &XML;
pages</ulink></member> <member><ulink
url="http://www.xml.org/xml/resources_cover.shtml">XML.org Resource
Guide</ulink></member> <member><ulink url="http://www.ucc.ie/xml/">The &XML;
FAQ</ulink></member> </simplelist></para></note>
<para>All &kword; documents consist of at least three files:</para>
<variablelist>
<varlistentry>
<term><filename>maindoc.xml</filename></term>
<listitem>
<para>This file contains the bulk of the &kword; text, tables and formula
information. It is marked with &XML; tags according to the official
DTD.</para> <para>A copy of the &kword; 1.3 DTD is located at: <ulink
url="http://www.koffice.org/DTD/kword-1.3.dtd">http://www.koffice.org/DTD/kword-1.3.dtd</ulink>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>documentinfo.xml</filename></term>
<listitem>
<para>This file contains the document information. This is information
entered into the dialog boxes when selecting
<menuchoice><guimenu>File</guimenu><guimenuitem>Document
Information</guimenuitem> </menuchoice> from the menubar. This information
is useful for tracking authors, contact information etc.</para>
<para>The DTD for &koffice; 1.3 is located at: <ulink
url="http://www.koffice.org/DTD/document-info-1.3.dtd">http://koffice.kde.org/DTD/document-info-1.3.dtd</ulink>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>mimetype</filename></term>
<listitem>
<para>This file contains the mimetype for &kword; files. This information
is used by &kde; to determine that this is a &kword; file.</para>
<para>This file always contains:
<emphasis>application/x-kword</emphasis></para>
</listitem>
</varlistentry>
</variablelist>
<para>In addition, there may be other files included in the &kword; document
file. Pictures, embedded documents and other binary information are stored
within the &kword; document as separate files.</para>
<para>For more specific information on &kword; file storage or other
internal information, please see <ulink
url="http://www.koffice.org/developer">The KOffice API</ulink> and the
<ulink url="http://developer.kde.org">General &kde; developer information
pages</ulink>.</para>
</sect2>
</sect1>
|
