Mixx is a free Blogger template with 2 columns, right sidebar, web 2.0 design, an exclusive design for Blogger, footer columns and simple look. Excellent template for blogs about internet.
1. Unzip the template file you downloaded (you can use 7-zip or WinRAR for this task).
2. Go to Blogger dashboard, then Theme.
3. Look for dropdown menu and click on it. Then select Restore and click Upload.
4. Select the .xml file from the directory in step 1 and upload it. Thats it, your template should be installed.
Mixx Blogger Template