How to Backup wordpress.com
It is easy to make your own backup of a blog hosted at wordpress.com.
Step 1: Go to your blog dashboard and sign in.
http://YOUR-BLOG-NAME.wordpress.com/wp-admin/
Step 2: Select Export from the Tools menu (on the left side).
Step 3: In the Export page, make sure All Authors is selected so that all of the posts are included. Click Download Export File to create your backup file.
Step 4: When the dialog box opens, select OK or Save to create the backup file on your computer. This file will contain all posts & pages (including drafts), comments, categories, and tags. However, the backup does not contain any uploads or images you included in your site. You need to backup these files separately.
The backup file can be used to restore selected posts or to load the blog into a different site. For more information, see WordPress support: export, import.
