ลองใช้ code นี้ไปแกะดูครับ ส่วนที่โพสจะอยู่ใน <item> ..... </item>
<?xml version="1.0" encoding="UTF-8" ?>
<!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your site. -->
<!-- It contains information about your site's posts, pages, comments, categories, and other content. -->
<!-- You may use this file to transfer that content from one site to another. -->
<!-- This file is not intended to serve as a complete backup of your site. -->
<!-- To import this information into a WordPress site follow these steps: -->
<!-- 1. Log in to that site as an administrator. -->
<!-- 2. Go to Tools: Import in the WordPress admin panel. -->
<!-- 3. Install the "WordPress" importer from the list. -->
<!-- 4. Activate & Run Importer. -->
<!-- 5. Upload this file using the form provided on that page. -->
<!-- 6. You will first be asked to map the authors in this export file to users -->
<!-- on the site. For each author, you may choose to map to an -->
<!-- existing user on the site or to create a new user. -->
<!-- 7. WordPress will then import each of the posts, pages, comments, categories, etc. -->
<!-- contained in this file into your site. -->
<!-- generator="WordPress/3.3.2" created="2012-12-22 07:00" -->
<rss version="2.0"
xmlns:excerpt="http://wordpress.org/export/1.1/excerpt/"
xmlns:content="http://purl.org/rss/1.0/modules/content/"
xmlns:wfw="http://wellformedweb.org/CommentAPI/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:wp="http://wordpress.org/export/1.1/"
>
<channel>
<item>
<wp:wxr_version>1.1</wp:wxr_version>
<title>test 2</title>
<pubDate>Sat, 22 Dec 2012 06:50:21 +0000</pubDate>
<dc:creator>admin</dc:creator>
<description></description>
<content:encoded><![CDATA[
est 2
est 2est 2012
est 2
est 2est 2est 2est 2
est 2est 2est 2
]]></content:encoded>
<excerpt:encoded><![CDATA[]]></excerpt:encoded>
<wp:post_id>117</wp:post_id>
<wp:post_date>2012-12-21 23:50:21</wp:post_date>
<wp:post_date_gmt>2012-12-22 06:50:21</wp:post_date_gmt>
<wp:comment_status>closed</wp:comment_status>
<wp:ping_status>closed</wp:ping_status>
<wp:post_name>test</wp:post_name>
<wp:status>trash</wp:status>
<wp:post_parent>0</wp:post_parent>
<wp:menu_order>0</wp:menu_order>
<wp:post_type>post</wp:post_type>
<wp:post_password></wp:post_password>
<wp:is_sticky>0</wp:is_sticky>
<wp:postmeta>
<wp:meta_value><![CDATA[publish]]></wp:meta_value>
</wp:postmeta>
</item>
</channel>
</rss>
หรือไม่ก็ลอง export ออกมาแล้วลองแกะดู
ขอบคุณครับ