By the following steps, you can take a backup of your blog’s posts and comments, preserving their publication dates, as well as authors, categories and tags.
- From the dashboard, go to Tools -> Export
- Choose “All content” or check the appropriate boxes to backup only the content of your choice. Then hit the “Download export file” button and save the file on your computer.
The file you saved is your blog’s backup.
The media files you might have uploaded on your blog are not backed up with this process. You’ll have to download them manually if you need to back them up too.