Installing Blogger Templates made easy {Recommended steps}
Before proceeding don't forget to backup your current blogger template. Save it somewhere on your PC, so that if you miss anything, you'll be able to use that backup file.
How to Install XML template on Blogger / Blogspot?
Installing blogger template on your Blogger blog is the easiest bit. Bloggertheme9 is providing quality Blogger templates since 2013. If you've downloaded the template file. First step you'll be doing is..
Unzip the zip file (extract it with Winzip or Winrar)
You will get four files along with the theme logo
Search for XML file, for example: ProVision Template
Write click on that xml file and open it in Notepad. Copy the entire code.
Go to Blogger Dashboard > Choose your Blog
From left tab > Theme > Edit HTML
Select entire code (CTRL + A) and replace it with the notepad code