@balay80 Just extract the shared zip file that contains demo XML file.
To import demo content from that WordPress export file (WXR) into your WordPress blog follow these steps.
Log into that blog as an administrator.
Go to Tools → Import in the blog’s Administration Screen.
Click “Install Now” link under the “WordPress”
Click “Run Importer” link.
Upload your WXR file using the form provided on that page.
You will first be asked to map the authors in this export file to users on the blog. For each author, you may choose to map to an existing user on the blog or to create a new user.
WordPress will then import each of the posts, comments, and categories contained in the uploaded file into your blog. In addition, you can import attachment by checking the “Download and import file attachments” option.