If your blog or website has lot of links referring to other URLs of websites or files in different locations and if these links should be opened in different window or different browser when you click on links then modify the template of blogger.
Go to blog template
Click on edit HTML
Click on the proceed button
search for tag
Place a new tag below it.
After placing new tag
Save template
Once the template is saved, each click on links or URLs in blogger are now opened in new browser or window in blogger.