- From your Blogger Dashboard, go to Design | Edit HTML.
- To backup your blog template, click the link "Download Full Template" under the "Backup / Restore Template" pane. Choose the option to save your template file from the next dialog that pops up. Browse to the location you want to save it and click Save. The template will be downloaded to the specified location. It's a small XML file and has all the details of your current template.
- To restore your blog template, just click the Browse button and browse to the downloaded template file then click Open. Click Upload button and Blogger will restore your template.
* Make sure to backup your blog template everytime you want to edit it in Edit HTML mode.