download a wordpress template, how can I preview it?

<?php
/**
 * The main template file.
 *
 * This is the most generic template file in a WordPress theme
 * and one of the two required files for a theme (the other being style.css).
 * It is used to display a page when nothing more specific matches a query.
 * E.g., it puts together the home page when no home.php file exists.
 * Learn more: http://codex.wordpress.org/Template_Hierarchy
 *
 * @package Sabino
 */
get_header(); ?>

	<?php if ( is_home() ) : ?>
	<div id="primary" class="content-area">
    <?php else : ?>
    <div id="primary" class="content-area">
    <?php endif; ?>
		
		<main id="main" class="site-main" role="main">
			
			<?php if ( !get_theme_mod( 'sabino-remove-page-titles' ) ) : ?>
				<?php get_template_part( '/templates/titlebar' ); ?>
			<?php endif; ?>
			
			<?php if ( have_posts() ) : ?>
			
					<?php /* Start the Loop */ ?>
					<?php while ( have_posts() ) : the_post(); ?>
						
						<?php
							/* Include the Post-Format-specific template for the content.
							 * If you want to override this in a child theme, then include a file
							 * called content-___.php (where ___ is the Post Format name) and that will be used instead.
							 */
							get_template_part( 'templates/contents/content' );
						?>
						
					<?php endwhile; ?>
				
				<?php the_posts_navigation(); ?>
					
			<?php else : ?>

				<?php get_template_part( 'templates/contents/content', 'none' ); ?>

			<?php endif; ?>

		</main><!-- #main -->
	</div><!-- #primary -->
	
	<?php get_sidebar(); ?>
    
<?php get_footer(); ?>