Been so long, I couldn't remember how.
Instructions:
POSTS
"Export your blog
When you export your blog, you get an .xml file of the posts and comments. After you export it, you'll still see it on your dashboard.- Sign in to blogger.com.
- Click the name of the blog you want to export.
- On the left side of the page, click Settings > Other.
- In the "Blog tools" section, click Export blog > Download blog."
TEMPLATE
"Tip: If you want to save a copy of your blog's template, go to the "Template" tab and click Backup/restore."
SOURCE
https://support.google.com/blogger/answer/97416?hl=en
For downloading templates:
After you select the 'Templates' tag:IMPORT BLOG instructions are on the same link (above).
> top right-hand corner of screen is a 'back-up/restore' button.
> Select that.
> Save file to hard disk.