Ajit Kumar Satpathy

These must be in function.php in the theme for the plugin to work for thumbnail and excerpt:
add_theme_support( ‘post-thumbnails’ );
set_post_thumbnail_size( form_option(‘thumbnail_size_w&&echo=false’), form_option(‘thumbnail_size_h&&echo=false’), true );
function custom_excerpt_length( $length ) { 
 return 20; 
} 
add_filter( ‘excerpt_length’, ‘custom_excerpt_length’, 999 ); 
function custom_excerpt_more( $more ) { 
 return ”; 
} 
add_filter( ‘excerpt_more’, ‘custom_excerpt_more’ );
You’ll also need to add thumbnails to the posts you want visible in the list.
After that, all you need to do is to add the hook [getcatlist 1] (where 1 is a categoy id) to your post.

Category Thumbnail Excerpt

Lists a category with thumbnails,title,excerpt with a read more link

Delite Studio

Adds a thumbnail to orders list in WooCommerce.

Order Thumbnail for WooCommerce

Adds a thumbnail to orders list in WooCommerce.

Category Thumbnail Excerpt vs Order Thumbnail for WooCommerce