I just set up a new site and want to copy some posts from an old one. I used the Export function under tools and it created an XML file which I saved. I then tried to import the file. My first attempt was to use the WordPress importer - seemed logical - but it says that I need to "Choose a WordPress WXR file to upload, then click Upload file and import". but the file created by Export is not a WXR file. When I try to Import the XML file no posts are added to the site. Any suggestions would be greatly appreciated.