It is very important to backup or download your template
before any experiment with your blog template or change the design of template.
You can download your blog template very easily.
At first login your blogger account with your Id.
Go to Design then click Edit HTML tab.
Click Download full template.
You can rename it when you save the template.
Now the question is ‘how to restore this template when
need it?’
It’s simple. Go to Design>Edit HTML. Click Browse
button and select your template file from your hard disk then click Upload.