Based on your request, here are the best methods to download or export blog content into a usable zip file or archive, particularly for platforms like WordPress or Blogger.
Go to Google Takeout to export Blogger data, which generates a zip file containing Atom feeds and media.
Which are you using (WordPress, Blogger, etc.)?
A tool used to download entire websites for offline viewing. Blogbooker : Creates PDF archives of your blog posts. To make sure this works for you, could you tell me:
Within Blogger, go to Settings > Manage blog > Back up content to get an XML file. Other Options
Manually download your wp-content/uploads/ folder via FTP/File Manager and export your SQL database through phpMyAdmin.