its is so easy you can upload template in blogger because sometime we can not design manually in blogger its is so hard but i can manage all things but we can upload external template in blogger and external template format should be .xml if you have this formate then you can uplaod so today i will uplaod one template for youFor external templates many websites on google you can choose one best template and uplaod this template on blogger i use Templateism sites. this sites is best for external templates and this site give Profesional template and i am also using this site for templates. When you select Any template from Templateism . Template format Should be XML file and we can upload this template in blogger and as well as in C panel Hosting .
when you download Template you will see XML Format like this
Now Go to Template in Blogger and click on backup new pop up will be open and you can see upload template file .upload template and close the window you template have been upload and you enjoy Profesional template now