Import XML Content

Administration menu
https://www.drupal.org/project/admin_menu

Writing module .info files
https://www.drupal.org/node/542202

function hook_block_info
https://api.drupal.org/api/drupal/modules%21block%21block.api.php/function/hook_block_info/7

simplexml_load_file
http://php.net/manual/en/function.simplexml-load-file.php

---------------------- xml_importer.info ------------------------------
name = XML Importer
description = Import XML file
core = 7.x
package = XML_Importer



------------------- xml_importer.module -------------------------------
<?php

function xml_importer_block_info() {
  $blocks['xml_view'] = array(
    'info' => t('xml_view'),
    'cache' => DRUPAL_NO_CACHE,
'region' => 'content',
'visibility' => BLOCK_VISIBILITY_PHP
  );

  return $blocks;
}

function xml_importer_block_view($delta = '') {
  // This example is adapted from node.module.
  $block = array();

  if($delta == 'xml_view'){
 $path = $_SERVER['DOCUMENT_ROOT']."/drupal-xml/sites/all/modules/xml_importer/books.xml";

$xml=simplexml_load_file($path) or die("Error: Cannot create object");
$items = array();
foreach($xml->children() as $books) {

$items[] = array(
'data' => 'Title - '.$books->title .'<BR/>'. 'Author - ' .$books->author .'<BR/>'. 'Genre - ' .$books->genre,

);
}

$block['content'] = theme('item_list', array('items' => $items));

  }
 
  return $block;
}