diff --git a/core/modules/editor/src/Form/EditorImageDialog.php b/core/modules/editor/src/Form/EditorImageDialog.php
index 34eed26..dcf8317 100644
--- a/core/modules/editor/src/Form/EditorImageDialog.php
+++ b/core/modules/editor/src/Form/EditorImageDialog.php
@@ -15,6 +15,7 @@
 use Drupal\Core\Ajax\HtmlCommand;
 use Drupal\editor\Ajax\EditorDialogSave;
 use Drupal\Core\Ajax\CloseModalDialogCommand;
+use Drupal\file\Entity\File;
 
 /**
  * Provides an image dialog for text editors.
@@ -208,7 +209,7 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
     // attributes.
     $fid = $form_state->getValue(array('fid', 0));
     if (!empty($fid)) {
-      $file = file_load($fid);
+      $file = File::load($fid);
       $file_url = file_create_url($file->getFileUri());
       // Transform absolute image URLs to relative image URLs: prevent problems
       // on multisite set-ups and prevent mixed content errors.
diff --git a/core/modules/file/file.module b/core/modules/file/file.module
index 55f99ac..e3f9138 100644
--- a/core/modules/file/file.module
+++ b/core/modules/file/file.module
@@ -659,9 +659,10 @@ function file_cron() {
       ->condition('changed', REQUEST_TIME - $age, '<')
       ->range(0, 100)
       ->execute();
-    $files = file_load_multiple($fids);
+    $files = File::loadMultiple($fids);
+    $file_usage = \Drupal::service('file.usage');
     foreach ($files as $file) {
-      $references = \Drupal::service('file.usage')->listUsage($file);
+      $references = $file_usage->listUsage($file);
       if (empty($references)) {
         if (file_exists($file->getFileUri())) {
           $file->delete();
@@ -1116,7 +1117,7 @@ function file_managed_file_process($element, FormStateInterface $form_state, $fo
 
   // Set some default element properties.
   $element['#progress_indicator'] = empty($element['#progress_indicator']) ? 'none' : $element['#progress_indicator'];
-  $element['#files'] = !empty($fids) ? file_load_multiple($fids) : FALSE;
+  $element['#files'] = !empty($fids) ? File::loadMultiple($fids) : FALSE;
   $element['#tree'] = TRUE;
 
   $ajax_settings = array(
@@ -1285,12 +1286,10 @@ function file_managed_file_value(&$element, $input, FormStateInterface $form_sta
 
       // Load files if the FIDs have changed to confirm they exist.
       if (!empty($input['fids'])) {
-        $fids = array();
-        foreach ($input['fids'] as $fid) {
-          if ($file = file_load($fid)) {
-            $fids[] = $file->id();
-          }
-        }
+        $fids = \Drupal::entityQuery('file')
+          ->condition('fid', $input['fids'], 'IN')
+          ->exists('fid')
+          ->execute();
       }
     }
   }
@@ -1308,12 +1307,10 @@ function file_managed_file_value(&$element, $input, FormStateInterface $form_sta
 
     // Confirm that the file exists when used as a default value.
     if (!empty($default_fids)) {
-      $fids = array();
-      foreach ($default_fids as $fid) {
-        if ($file = file_load($fid)) {
-          $fids[] = $file->id();
-        }
-      }
+      $fids = \Drupal::entityQuery('file')
+        ->condition('fid', $default_fids, 'IN')
+        ->exists('fid')
+        ->execute();
     }
   }
 
@@ -1333,11 +1330,12 @@ function file_managed_file_validate(&$element, FormStateInterface $form_state) {
   // item were to be deleted.
   $clicked_button = end($form_state->getTriggeringElement()['#parents']);
   if ($clicked_button != 'remove_button' && !empty($element['fids']['#value'])) {
-    $fids = $element['fids']['#value'];
-    foreach ($fids as $fid) {
-      if ($file = file_load($fid)) {
-        if ($file->isPermanent()) {
-          $references = \Drupal::service('file.usage')->listUsage($file);
+     $files = File::loadMultiple($element['fids']['#value']);
+     $file_usage = \Drupal::service('file.usage');
+     foreach ($element['fids']['#value'] as $fid) {
+       if (!empty($files[$fid])) {
+         if ($files[$fid]->isPermanent()) {
+           $references = $file_usage->listUsage($files[$fid]);
           if (empty($references)) {
             $form_state->setError($element, t('The file used in the !name field may not be referenced.', array('!name' => $element['#title'])));
           }
@@ -1548,7 +1546,7 @@ function template_preprocess_file_link(&$variables) {
   $icon_directory = $variables['icon_directory'];
 
   $url = file_create_url($file->getFileUri());
-  $file_entity = ($file instanceof File) ? $file : file_load($file->fid);
+  $file_entity = ($file instanceof FileInterface) ? $file : File::load($file->fid);
 
   // Human-readable names, for use as text-alternatives to icons.
   $mime_name = array(
diff --git a/core/modules/file/src/Plugin/Field/FieldFormatter/FileFormatterBase.php b/core/modules/file/src/Plugin/Field/FieldFormatter/FileFormatterBase.php
index 3c45fe4..23945fc 100644
--- a/core/modules/file/src/Plugin/Field/FieldFormatter/FileFormatterBase.php
+++ b/core/modules/file/src/Plugin/Field/FieldFormatter/FileFormatterBase.php
@@ -8,6 +8,7 @@
 namespace Drupal\file\Plugin\Field\FieldFormatter;
 
 use Drupal\Core\Field\FormatterBase;
+use Drupal\file\Entity\File;
 
 /**
  * Base class for file formatters.
@@ -30,7 +31,7 @@ public function prepareView(array $entities_items) {
     }
 
     if ($fids) {
-      $files = file_load_multiple($fids);
+      $files = File::loadMultiple($fids);
 
       foreach ($entities_items as $items) {
         foreach ($items as $item) {
diff --git a/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php b/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
index f9becf4..8ee6929 100644
--- a/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
+++ b/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php
@@ -14,6 +14,7 @@
 use Drupal\Core\Field\WidgetBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\Element;
+use Drupal\file\Entity\File;
 
 /**
  * Plugin implementation of the 'file_generic' widget.
@@ -323,7 +324,7 @@ public static function validateMultipleCount($element, FormStateInterface $form_
       $removed_files = array_slice($values['fids'], $keep);
       $removed_names = array();
       foreach ($removed_files as $fid) {
-        $file = file_load($fid);
+        $file = File::load($fid);
         $removed_names[] = $file->getFilename();
       }
       $args = array('%field' => $field_storage->getFieldName(), '@max' => $field_storage->getCardinality(), '@count' => $keep, '%list' => implode(', ', $removed_names));
diff --git a/core/modules/file/src/Tests/CopyTest.php b/core/modules/file/src/Tests/CopyTest.php
index 3a3a727..aec77dd 100644
--- a/core/modules/file/src/Tests/CopyTest.php
+++ b/core/modules/file/src/Tests/CopyTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests the file copy function.
  *
@@ -39,7 +41,8 @@ function testNormal() {
 
     // Reload the file from the database and check that the changes were
     // actually saved.
-    $this->assertFileUnchanged($result, file_load($result->id(), TRUE));
+    $fid = $result->id();
+    $this->assertFileUnchanged($result, File::load($fid));
   }
 
   /**
@@ -66,9 +69,9 @@ function testExistingRename() {
 
     // Load all the affected files to check the changes that actually made it
     // to the database.
-    $loaded_source = file_load($source->id(), TRUE);
-    $loaded_target = file_load($target->id(), TRUE);
-    $loaded_result = file_load($result->id(), TRUE);
+    $loaded_source = File::load($source->id());
+    $loaded_target = File::load($target->id());
+    $loaded_result = File::load($result->id());
 
     // Verify that the source file wasn't changed.
     $this->assertFileUnchanged($source, $loaded_source);
@@ -106,9 +109,9 @@ function testExistingReplace() {
 
     // Load all the affected files to check the changes that actually made it
     // to the database.
-    $loaded_source = file_load($source->id(), TRUE);
-    $loaded_target = file_load($target->id(), TRUE);
-    $loaded_result = file_load($result->id(), TRUE);
+    $loaded_source = File::load($source->id());
+    $loaded_target = File::load($target->id());
+    $loaded_result = File::load($result->id());
 
     // Verify that the source file wasn't changed.
     $this->assertFileUnchanged($source, $loaded_source);
@@ -141,7 +144,7 @@ function testExistingError() {
     // Check that the correct hooks were called.
     $this->assertFileHooksCalled(array());
 
-    $this->assertFileUnchanged($source, file_load($source->id(), TRUE));
-    $this->assertFileUnchanged($target, file_load($target->id(), TRUE));
+    $this->assertFileUnchanged($source, File::load($source->id()));
+    $this->assertFileUnchanged($target, File::load($target->id()));
   }
 }
diff --git a/core/modules/file/src/Tests/DeleteTest.php b/core/modules/file/src/Tests/DeleteTest.php
index f39239f..6ce5c4d 100644
--- a/core/modules/file/src/Tests/DeleteTest.php
+++ b/core/modules/file/src/Tests/DeleteTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests the file delete function.
  *
@@ -24,7 +26,7 @@ function testUnused() {
     $file->delete();
     $this->assertFileHooksCalled(array('delete'));
     $this->assertFalse(file_exists($file->getFileUri()), 'Test file has actually been deleted.');
-    $this->assertFalse(file_load($file->id()), 'File was removed from the database.');
+    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
   }
 
   /**
@@ -40,7 +42,7 @@ function testInUse() {
     $usage = $file_usage->listUsage($file);
     $this->assertEqual($usage['testing']['test'], array(1 => 1), 'Test file is still in use.');
     $this->assertTrue(file_exists($file->getFileUri()), 'File still exists on the disk.');
-    $this->assertTrue(file_load($file->id()), 'File still exists in the database.');
+    $this->assertTrue(File::load($file->id()), 'File still exists in the database.');
 
     // Clear out the call to hook_file_load().
     file_test_reset();
@@ -50,7 +52,7 @@ function testInUse() {
     $this->assertFileHooksCalled(array('load', 'update'));
     $this->assertTrue(empty($usage), 'File usage data was removed.');
     $this->assertTrue(file_exists($file->getFileUri()), 'File still exists on the disk.');
-    $file = file_load($file->id());
+    $file = File::load($file->id());
     $this->assertTrue($file, 'File still exists in the database.');
     $this->assertTrue($file->isTemporary(), 'File is temporary.');
     file_test_reset();
@@ -69,6 +71,6 @@ function testInUse() {
     // file_cron() loads
     $this->assertFileHooksCalled(array('delete'));
     $this->assertFalse(file_exists($file->getFileUri()), 'File has been deleted after its last usage was removed.');
-    $this->assertFalse(file_load($file->id()), 'File was removed from the database.');
+    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
   }
 }
diff --git a/core/modules/file/src/Tests/FileFieldDisplayTest.php b/core/modules/file/src/Tests/FileFieldDisplayTest.php
index 1b11125..414084f 100644
--- a/core/modules/file/src/Tests/FileFieldDisplayTest.php
+++ b/core/modules/file/src/Tests/FileFieldDisplayTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\file\Tests;
 
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\file\Entity\File;
 
 /**
  * Tests the display of file fields in node and views.
@@ -55,7 +56,7 @@ function testNodeDisplay() {
 
     // Check that the default formatter is displaying with the file name.
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $file_link = array(
       '#theme' => 'file_link',
       '#file' => $node_file,
diff --git a/core/modules/file/src/Tests/FileFieldPathTest.php b/core/modules/file/src/Tests/FileFieldPathTest.php
index 865317a..87449d8 100644
--- a/core/modules/file/src/Tests/FileFieldPathTest.php
+++ b/core/modules/file/src/Tests/FileFieldPathTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests that files are uploaded to proper locations.
  *
@@ -27,7 +29,7 @@ function testUploadPath() {
 
     // Check that the file was uploaded to the file root.
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertPathMatch('public://' . $test_file->getFilename(), $node_file->getFileUri(), format_string('The file %file was uploaded to the correct path.', array('%file' => $node_file->getFileUri())));
 
     // Change the path to contain multiple subdirectories.
@@ -38,7 +40,9 @@ function testUploadPath() {
 
     // Check that the file was uploaded into the subdirectory.
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id, TRUE);
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($node->{$field_name}->target_id));
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertPathMatch('public://foo/bar/baz/' . $test_file->getFilename(), $node_file->getFileUri(), format_string('The file %file was uploaded to the correct path.', array('%file' => $node_file->getFileUri())));
 
     // Check the path when used with tokens.
@@ -50,7 +54,7 @@ function testUploadPath() {
 
     // Check that the file was uploaded into the subdirectory.
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     // Do token replacement using the same user which uploaded the file, not
     // the user running the test case.
     $data = array('user' => $this->admin_user);
diff --git a/core/modules/file/src/Tests/FileFieldRSSContentTest.php b/core/modules/file/src/Tests/FileFieldRSSContentTest.php
index b11090f..0ce07b7 100644
--- a/core/modules/file/src/Tests/FileFieldRSSContentTest.php
+++ b/core/modules/file/src/Tests/FileFieldRSSContentTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Ensure that files added to nodes appear correctly in RSS feeds.
  *
@@ -59,7 +61,7 @@ function testFileFieldRSSContent() {
 
     // Get the uploaded file from the node.
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
 
     // Check that the RSS enclosure appears in the RSS feed.
     $this->drupalGet('rss.xml');
diff --git a/core/modules/file/src/Tests/FileFieldRevisionTest.php b/core/modules/file/src/Tests/FileFieldRevisionTest.php
index b45b200..c74d126 100644
--- a/core/modules/file/src/Tests/FileFieldRevisionTest.php
+++ b/core/modules/file/src/Tests/FileFieldRevisionTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests creating and deleting revisions with files attached.
  *
@@ -38,7 +40,7 @@ function testRevisions() {
 
     // Check that the file exists on disk and in the database.
     $node = node_load($nid, TRUE);
-    $node_file_r1 = file_load($node->{$field_name}->target_id);
+    $node_file_r1 = File::load($node->{$field_name}->target_id);
     $node_vid_r1 = $node->getRevisionId();
     $this->assertFileExists($node_file_r1, 'New file saved to disk on node creation.');
     $this->assertFileEntryExists($node_file_r1, 'File entry exists in database on node creation.');
@@ -47,7 +49,7 @@ function testRevisions() {
     // Upload another file to the same node in a new revision.
     $this->replaceNodeFile($test_file, $field_name, $nid);
     $node = node_load($nid, TRUE);
-    $node_file_r2 = file_load($node->{$field_name}->target_id);
+    $node_file_r2 = File::load($node->{$field_name}->target_id);
     $node_vid_r2 = $node->getRevisionId();
     $this->assertFileExists($node_file_r2, 'Replacement file exists on disk after creating new revision.');
     $this->assertFileEntryExists($node_file_r2, 'Replacement file entry exists in database after creating new revision.');
@@ -55,7 +57,7 @@ function testRevisions() {
 
     // Check that the original file is still in place on the first revision.
     $node = node_revision_load($node_vid_r1);
-    $current_file = file_load($node->{$field_name}->target_id);
+    $current_file = File::load($node->{$field_name}->target_id);
     $this->assertEqual($node_file_r1->id(), $current_file->id(), 'Original file still in place after replacing file in new revision.');
     $this->assertFileExists($node_file_r1, 'Original file still in place after replacing file in new revision.');
     $this->assertFileEntryExists($node_file_r1, 'Original file entry still in place after replacing file in new revision');
@@ -65,7 +67,7 @@ function testRevisions() {
     // Check that the file is still the same as the previous revision.
     $this->drupalPostForm('node/' . $nid . '/edit', array('revision' => '1'), t('Save and keep published'));
     $node = node_load($nid, TRUE);
-    $node_file_r3 = file_load($node->{$field_name}->target_id);
+    $node_file_r3 = File::load($node->{$field_name}->target_id);
     $node_vid_r3 = $node->getRevisionId();
     $this->assertEqual($node_file_r2->id(), $node_file_r3->id(), 'Previous revision file still in place after creating a new revision without a new file.');
     $this->assertFileIsPermanent($node_file_r3, 'New revision file is permanent.');
@@ -73,7 +75,7 @@ function testRevisions() {
     // Revert to the first revision and check that the original file is active.
     $this->drupalPostForm('node/' . $nid . '/revisions/' . $node_vid_r1 . '/revert', array(), t('Revert'));
     $node = node_load($nid, TRUE);
-    $node_file_r4 = file_load($node->{$field_name}->target_id);
+    $node_file_r4 = File::load($node->{$field_name}->target_id);
     $this->assertEqual($node_file_r1->id(), $node_file_r4->id(), 'Original revision file still in place after reverting to the original revision.');
     $this->assertFileIsPermanent($node_file_r4, 'Original revision file still permanent after reverting to the original revision.');
 
diff --git a/core/modules/file/src/Tests/FileFieldTestBase.php b/core/modules/file/src/Tests/FileFieldTestBase.php
index ffdfee8..802527c 100644
--- a/core/modules/file/src/Tests/FileFieldTestBase.php
+++ b/core/modules/file/src/Tests/FileFieldTestBase.php
@@ -11,6 +11,7 @@
 use Drupal\field\Entity\FieldConfig;
 use Drupal\file\FileInterface;
 use Drupal\simpletest\WebTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * Provides methods specifically for testing File module's field handling.
@@ -207,7 +208,7 @@ function assertFileExists($file, $message = NULL) {
    */
   function assertFileEntryExists($file, $message = NULL) {
     $this->container->get('entity.manager')->getStorage('file')->resetCache();
-    $db_file = file_load($file->id());
+    $db_file = File::load($file->id());
     $message = isset($message) ? $message : format_string('File %file exists in database at the correct path.', array('%file' => $file->getFileUri()));
     $this->assertEqual($db_file->getFileUri(), $file->getFileUri(), $message);
   }
@@ -226,7 +227,7 @@ function assertFileNotExists($file, $message = NULL) {
   function assertFileEntryNotExists($file, $message) {
     $this->container->get('entity.manager')->getStorage('file')->resetCache();
     $message = isset($message) ? $message : format_string('File %file exists in database at the correct path.', array('%file' => $file->getFileUri()));
-    $this->assertFalse(file_load($file->id()), $message);
+    $this->assertFalse(File::load($file->id()), $message);
   }
 
   /**
diff --git a/core/modules/file/src/Tests/FileFieldValidateTest.php b/core/modules/file/src/Tests/FileFieldValidateTest.php
index bc910e0..7edd15f 100644
--- a/core/modules/file/src/Tests/FileFieldValidateTest.php
+++ b/core/modules/file/src/Tests/FileFieldValidateTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\field\Entity\FieldConfig;
+use Drupal\file\Entity\File;
 
 /**
  * Tests validation functions such as file type, max file size, max size per
@@ -43,7 +44,7 @@ function testRequired() {
 
     $node = node_load($nid, TRUE);
 
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertFileExists($node_file, 'File exists after uploading to the required field.');
     $this->assertFileEntryExists($node_file, 'File entry exists after uploading to the required field.');
 
@@ -60,7 +61,7 @@ function testRequired() {
     // Create a new node with the uploaded file into the multivalue field.
     $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertFileExists($node_file, 'File exists after uploading to the required multiple value field.');
     $this->assertFileEntryExists($node_file, 'File entry exists after uploading to the required multiple value field.');
   }
@@ -90,7 +91,7 @@ function testFileMaxSize() {
       // Create a new node with the small file, which should pass.
       $nid = $this->uploadNodeFile($small_file, $field_name, $type_name);
       $node = node_load($nid, TRUE);
-      $node_file = file_load($node->{$field_name}->target_id);
+      $node_file = File::load($node->{$field_name}->target_id);
       $this->assertFileExists($node_file, format_string('File exists after uploading a file (%filesize) under the max limit (%maxsize).', array('%filesize' => format_size($small_file->getSize()), '%maxsize' => $max_filesize)));
       $this->assertFileEntryExists($node_file, format_string('File entry exists after uploading a file (%filesize) under the max limit (%maxsize).', array('%filesize' => format_size($small_file->getSize()), '%maxsize' => $max_filesize)));
 
@@ -106,7 +107,7 @@ function testFileMaxSize() {
     // Upload the big file successfully.
     $nid = $this->uploadNodeFile($large_file, $field_name, $type_name);
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertFileExists($node_file, format_string('File exists after uploading a file (%filesize) with no max limit.', array('%filesize' => format_size($large_file->getSize()))));
     $this->assertFileEntryExists($node_file, format_string('File entry exists after uploading a file (%filesize) with no max limit.', array('%filesize' => format_size($large_file->getSize()))));
   }
@@ -128,7 +129,7 @@ function testFileExtension() {
     // Check that the file can be uploaded with no extension checking.
     $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertFileExists($node_file, 'File exists after uploading a file with no extension checking.');
     $this->assertFileEntryExists($node_file, 'File entry exists after uploading a file with no extension checking.');
 
@@ -146,7 +147,7 @@ function testFileExtension() {
     // Check that the file can be uploaded with extension checking.
     $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertFileExists($node_file, 'File exists after uploading a file with extension checking.');
     $this->assertFileEntryExists($node_file, 'File entry exists after uploading a file with extension checking.');
   }
diff --git a/core/modules/file/src/Tests/FileFieldWidgetTest.php b/core/modules/file/src/Tests/FileFieldWidgetTest.php
index 5cc7ab7..7b7c0d0 100644
--- a/core/modules/file/src/Tests/FileFieldWidgetTest.php
+++ b/core/modules/file/src/Tests/FileFieldWidgetTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\comment\Entity\Comment;
 use Drupal\field\Entity\FieldConfig;
+use Drupal\file\Entity\File;
 
 /**
  * Tests the file field widget, single and multi-valued, with and without AJAX,
@@ -42,7 +43,7 @@ function testSingleValuedWidget() {
       //   does not yet support file uploads.
       $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
       $node = node_load($nid, TRUE);
-      $node_file = file_load($node->{$field_name}->target_id);
+      $node_file = File::load($node->{$field_name}->target_id);
       $this->assertFileExists($node_file, 'New file saved to disk on node creation.');
 
       // Ensure the file can be downloaded.
@@ -215,7 +216,7 @@ function testPrivateFileSetting() {
     $this->drupalPostForm("admin/structure/types/manage/$type_name/fields/$field->id/storage", $edit, t('Save field settings'));
     $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     $this->assertFileExists($node_file, 'New file saved to disk on node creation.');
 
     // Ensure the private file is available to the user who uploaded it.
diff --git a/core/modules/file/src/Tests/FileListingTest.php b/core/modules/file/src/Tests/FileListingTest.php
index 216bb5f..0f32dc4 100644
--- a/core/modules/file/src/Tests/FileListingTest.php
+++ b/core/modules/file/src/Tests/FileListingTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests file listing page functionality.
  *
@@ -94,7 +96,7 @@ function testFileListingPages() {
     $this->drupalGet('admin/content/files');
 
     foreach ($nodes as $node) {
-      $file = entity_load('file', $node->file->target_id);
+      $file = File::load($node->file->target_id);
       $this->assertText($file->getFilename());
       $this->assertLinkByHref(file_create_url($file->getFileUri()));
       $this->assertLinkByHref('admin/content/files/usage/' . $file->id());
@@ -108,11 +110,11 @@ function testFileListingPages() {
     $nodes[1]->save();
 
     $this->drupalGet('admin/content/files');
-    $file = entity_load('file', $orphaned_file);
+    $file = File::load($orphaned_file);
     $usage = $this->sumUsages($file_usage->listUsage($file));
     $this->assertRaw('admin/content/files/usage/' . $file->id() . '">' . $usage);
 
-    $file = entity_load('file', $used_file);
+    $file = File::load($used_file);
     $usage = $this->sumUsages($file_usage->listUsage($file));
     $this->assertRaw('admin/content/files/usage/' . $file->id() . '">' . $usage);
 
@@ -121,7 +123,7 @@ function testFileListingPages() {
 
     // Test file usage page.
     foreach ($nodes as $node) {
-      $file = entity_load('file', $node->file->target_id);
+      $file = File::load($node->file->target_id);
       $usage = $file_usage->listUsage($file);
       $this->drupalGet('admin/content/files/usage/' . $file->id());
       $this->assertResponse(200);
diff --git a/core/modules/file/src/Tests/FilePrivateTest.php b/core/modules/file/src/Tests/FilePrivateTest.php
index d1561cc..245d473 100644
--- a/core/modules/file/src/Tests/FilePrivateTest.php
+++ b/core/modules/file/src/Tests/FilePrivateTest.php
@@ -6,6 +6,7 @@
  */
 
 namespace Drupal\file\Tests;
+
 use Drupal\file\Entity\File;
 use Drupal\node\Entity\Node;
 
@@ -46,7 +47,7 @@ function testPrivateFile() {
     $test_file = $this->getTestFile('text');
     $nid = $this->uploadNodeFile($test_file, $field_name, $type_name, TRUE, array('private' => TRUE));
     $node = node_load($nid, TRUE);
-    $node_file = file_load($node->{$field_name}->target_id);
+    $node_file = File::load($node->{$field_name}->target_id);
     // Ensure the file can be downloaded.
     $this->drupalGet(file_create_url($node_file->getFileUri()));
     $this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
diff --git a/core/modules/file/src/Tests/FileTokenReplaceTest.php b/core/modules/file/src/Tests/FileTokenReplaceTest.php
index 36fe888..679dd48 100644
--- a/core/modules/file/src/Tests/FileTokenReplaceTest.php
+++ b/core/modules/file/src/Tests/FileTokenReplaceTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\file\Tests;
 
 use Drupal\Component\Utility\String;
+use Drupal\file\Entity\File;
 
 /**
  * Generates text using placeholders for dummy content to check file token
@@ -38,7 +39,7 @@ function testFileTokenReplacement() {
 
     // Load the node and the file.
     $node = node_load($nid, TRUE);
-    $file = file_load($node->{$field_name}->target_id);
+    $file = File::load($node->{$field_name}->target_id);
 
     // Generate and test sanitized tokens.
     $tests = array();
diff --git a/core/modules/file/src/Tests/LoadTest.php b/core/modules/file/src/Tests/LoadTest.php
index 7c593cb..434841d 100644
--- a/core/modules/file/src/Tests/LoadTest.php
+++ b/core/modules/file/src/Tests/LoadTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests the file_load() function.
  *
@@ -17,7 +19,7 @@ class LoadTest extends FileManagedUnitTestBase {
    * Try to load a non-existent file by fid.
    */
   function testLoadMissingFid() {
-    $this->assertFalse(file_load(-1), 'Try to load an invalid fid fails.');
+    $this->assertFalse(File::load(-1), 'Try to load an invalid fid fails.');
     $this->assertFileHooksCalled(array());
   }
 
@@ -46,9 +48,9 @@ function testSingleValues() {
     // Create a new file entity from scratch so we know the values.
     $file = $this->createFile('druplicon.txt', NULL, 'public');
 
-    $by_fid_file = file_load($file->id());
+    $by_fid_file = File::load($file->id());
     $this->assertFileHookCalled('load');
-    $this->assertTrue(is_object($by_fid_file), 'file_load() returned an object.');
+    $this->assertTrue(is_object($by_fid_file), 'File::load() returned an object.');
     $this->assertEqual($by_fid_file->id(), $file->id(), 'Loading by fid got the same fid.', 'File');
     $this->assertEqual($by_fid_file->getFileUri(), $file->getFileUri(), 'Loading by fid got the correct filepath.', 'File');
     $this->assertEqual($by_fid_file->getFilename(), $file->getFilename(), 'Loading by fid got the correct filename.', 'File');
@@ -75,9 +77,9 @@ function testMultiple() {
 
     // Load by fid.
     file_test_reset();
-    $by_fid_files = file_load_multiple(array($file->id()));
+    $by_fid_files = File::loadMultiple(array($file->id()));
     $this->assertFileHooksCalled(array());
-    $this->assertEqual(1, count($by_fid_files), 'file_load_multiple() returned an array of the correct size.');
+    $this->assertEqual(1, count($by_fid_files), 'File::loadMultiple() returned an array of the correct size.');
     $by_fid_file = reset($by_fid_files);
     $this->assertTrue($by_fid_file->file_test['loaded'], 'file_test_file_load() was able to modify the file during load.');
     $this->assertEqual($by_fid_file->getFileUri(), $file->getFileUri(), 'Loading by fid got the correct filepath.', 'File');
diff --git a/core/modules/file/src/Tests/MoveTest.php b/core/modules/file/src/Tests/MoveTest.php
index 9b1bfc2..7a76637 100644
--- a/core/modules/file/src/Tests/MoveTest.php
+++ b/core/modules/file/src/Tests/MoveTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests the file move function.
  *
@@ -38,7 +40,9 @@ function testNormal() {
 
     // Reload the file from the database and check that the changes were
     // actually saved.
-    $loaded_file = file_load($result->id(), TRUE);
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($result->id()));
+    $loaded_file = File::load($result->id());
     $this->assertTrue($loaded_file, 'File can be loaded from the database.');
     $this->assertFileUnchanged($result, $loaded_file);
   }
@@ -66,14 +70,18 @@ function testExistingRename() {
     $this->assertFileHooksCalled(array('move', 'load', 'update'));
 
     // Compare the returned value to what made it into the database.
-    $this->assertFileUnchanged($result, file_load($result->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($result->id()));
+    $this->assertFileUnchanged($result, File::load($result->id()));
     // The target file should not have been altered.
-    $this->assertFileUnchanged($target, file_load($target->id(), TRUE));
+    $file_storage->resetCache(array($target->id()));
+    $this->assertFileUnchanged($target, File::load($target->id()));
     // Make sure we end up with two distinct files afterwards.
     $this->assertDifferentFile($target, $result);
 
     // Compare the source and results.
-    $loaded_source = file_load($source->id(), TRUE);
+    $file_storage->resetCache(array($source->id()));
+    $loaded_source = File::load($source->id());
     $this->assertEqual($loaded_source->id(), $result->id(), "Returned file's id matches the source.");
     $this->assertNotEqual($loaded_source->getFileUri(), $source->getFileUri(), 'Returned file path has changed from the original.');
   }
@@ -102,7 +110,9 @@ function testExistingReplace() {
 
     // Reload the file from the database and check that the changes were
     // actually saved.
-    $loaded_result = file_load($result->id(), TRUE);
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($result->id()));
+    $loaded_result = File::load($result->id());
     $this->assertFileUnchanged($result, $loaded_result);
     // Check that target was re-used.
     $this->assertSameFile($target, $loaded_result);
@@ -129,7 +139,9 @@ function testExistingReplaceSelf() {
 
     // Load the file from the database and make sure it is identical to what
     // was returned.
-    $this->assertFileUnchanged($source, file_load($source->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($source->id()));
+    $this->assertFileUnchanged($source, File::load($source->id()));
   }
 
   /**
@@ -156,7 +168,10 @@ function testExistingError() {
 
     // Load the file from the database and make sure it is identical to what
     // was returned.
-    $this->assertFileUnchanged($source, file_load($source->id(), TRUE));
-    $this->assertFileUnchanged($target, file_load($target->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($source->id()));
+    $this->assertFileUnchanged($source, File::load($source->id()));
+    $file_storage->resetCache(array($target->id()));
+    $this->assertFileUnchanged($target, File::load($target->id()));
   }
 }
diff --git a/core/modules/file/src/Tests/SaveDataTest.php b/core/modules/file/src/Tests/SaveDataTest.php
index 8368e0b..73f098f 100644
--- a/core/modules/file/src/Tests/SaveDataTest.php
+++ b/core/modules/file/src/Tests/SaveDataTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests the file_save_data() function.
  *
@@ -32,7 +34,9 @@ function testWithoutFilename() {
     $this->assertFileHooksCalled(array('insert'));
 
     // Verify that what was returned is what's in the database.
-    $this->assertFileUnchanged($result, file_load($result->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($result->id()));
+    $this->assertFileUnchanged($result, File::load($result->id()));
   }
 
   /**
@@ -57,7 +61,9 @@ function testWithFilename() {
     $this->assertFileHooksCalled(array('insert'));
 
     // Verify that what was returned is what's in the database.
-    $this->assertFileUnchanged($result, file_load($result->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($result->id()));
+    $this->assertFileUnchanged($result, File::load($result->id()));
   }
 
   /**
@@ -81,11 +87,14 @@ function testExistingRename() {
     $this->assertFileHooksCalled(array('insert'));
 
     // Ensure that the existing file wasn't overwritten.
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($existing->id()));
     $this->assertDifferentFile($existing, $result);
-    $this->assertFileUnchanged($existing, file_load($existing->id(), TRUE));
+    $this->assertFileUnchanged($existing, File::load($existing->id()));
 
     // Verify that was returned is what's in the database.
-    $this->assertFileUnchanged($result, file_load($result->id(), TRUE));
+    $file_storage->resetCache(array($result->id()));
+    $this->assertFileUnchanged($result, File::load($result->id()));
   }
 
   /**
@@ -112,7 +121,9 @@ function testExistingReplace() {
     $this->assertSameFile($existing, $result);
 
     // Verify that what was returned is what's in the database.
-    $this->assertFileUnchanged($result, file_load($result->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($result->id()));
+    $this->assertFileUnchanged($result, File::load($result->id()));
   }
 
   /**
@@ -131,6 +142,8 @@ function testExistingError() {
     $this->assertFileHooksCalled(array());
 
     // Ensure that the existing file wasn't overwritten.
-    $this->assertFileUnchanged($existing, file_load($existing->id(), TRUE));
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($existing->id()));
+    $this->assertFileUnchanged($existing, File::load($existing->id()));
   }
 }
diff --git a/core/modules/file/src/Tests/SaveTest.php b/core/modules/file/src/Tests/SaveTest.php
index ee6c1a3..2615f94 100644
--- a/core/modules/file/src/Tests/SaveTest.php
+++ b/core/modules/file/src/Tests/SaveTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\file\Tests;
 
 use Drupal\Core\Language\LanguageInterface;
+use Drupal\file\Entity\File;
 
 /**
  * File saving tests.
@@ -35,7 +36,7 @@ function testFileSave() {
     $this->assertFileHooksCalled(array('insert'));
 
     $this->assertTrue($file->id() > 0, 'A new file ID is set when saving a new file to the database.', 'File');
-    $loaded_file = file_load($file->id());
+    $loaded_file = File::load($file->id());
     $this->assertNotNull($loaded_file, 'Record exists in the database.');
     $this->assertEqual($loaded_file->isPermanent(), $file->isPermanent(), 'Status was saved correctly.');
     $this->assertEqual($file->getSize(), filesize($file->getFileUri()), 'File size was set correctly.', 'File');
@@ -52,7 +53,7 @@ function testFileSave() {
 
     $this->assertEqual($file->id(), $file->id(), 'The file ID of an existing file is not changed when updating the database.', 'File');
     $this->assertTrue($file->getChangedTime() >= $file->getChangedTime(), "Timestamp didn't go backwards.", 'File');
-    $loaded_file = file_load($file->id());
+    $loaded_file = File::load($file->id());
     $this->assertNotNull($loaded_file, 'Record still exists in the database.', 'File');
     $this->assertEqual($loaded_file->isPermanent(), $file->isPermanent(), 'Status was saved correctly.');
     $this->assertEqual($loaded_file->langcode->value, 'en', 'Langcode was saved correctly.');
diff --git a/core/modules/file/src/Tests/SaveUploadTest.php b/core/modules/file/src/Tests/SaveUploadTest.php
index 30e681d..76455d4 100644
--- a/core/modules/file/src/Tests/SaveUploadTest.php
+++ b/core/modules/file/src/Tests/SaveUploadTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\file\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests the file_save_upload() function.
  *
@@ -65,7 +67,7 @@ protected function setUp() {
   function testNormal() {
     $max_fid_after = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();
     $this->assertTrue($max_fid_after > $this->maxFidBefore, 'A new file was created.');
-    $file1 = file_load($max_fid_after);
+    $file1 = File::load($max_fid_after);
     $this->assertTrue($file1, 'Loaded the file.');
     // MIME type of the uploaded image may be either image/jpeg or image/png.
     $this->assertEqual(substr($file1->getMimeType(), 0, 5), 'image', 'A MIME type was set.');
@@ -84,13 +86,13 @@ function testNormal() {
     // Check that the correct hooks were called.
     $this->assertFileHooksCalled(array('validate', 'insert'));
 
-    $file2 = file_load($max_fid_after);
+    $file2 = File::load($max_fid_after);
     $this->assertTrue($file2, 'Loaded the file');
     // MIME type of the uploaded image may be either image/jpeg or image/png.
     $this->assertEqual(substr($file2->getMimeType(), 0, 5), 'image', 'A MIME type was set.');
 
-    // Load both files using file_load_multiple().
-    $files = file_load_multiple(array($file1->id(), $file2->id()));
+    // Load both files using File::loadMultiple().
+    $files = File::loadMultiple(array($file1->id(), $file2->id()));
     $this->assertTrue(isset($files[$file1->id()]), 'File was loaded successfully');
     $this->assertTrue(isset($files[$file2->id()]), 'File was loaded successfully');
 
diff --git a/core/modules/image/image.module b/core/modules/image/image.module
index de32196..7af3e06 100644
--- a/core/modules/image/image.module
+++ b/core/modules/image/image.module
@@ -351,7 +351,7 @@ function image_entity_presave(EntityInterface $entity) {
   if ($fid) {
     $original_fid = isset($entity->original) ? $entity->original->settings['default_image']['fid'] : NULL;
     if ($fid != $original_fid) {
-      $file = file_load($fid);
+      $file = File::load($fid);
       if ($file) {
         $image = \Drupal::service('image.factory')->get($file->getFileUri());
         $entity->settings['default_image']['width'] = $image->getWidth();
@@ -381,7 +381,7 @@ function image_field_storage_config_update(FieldStorageConfigInterface $field_st
   $fid_new = $field_storage->settings['default_image']['fid'];
   $fid_old = $prior_field_storage->settings['default_image']['fid'];
 
-  $file_new = $fid_new ? file_load($fid_new) : FALSE;
+  $file_new = $fid_new ? File::load($fid_new) : FALSE;
 
   if ($fid_new != $fid_old) {
 
@@ -393,7 +393,7 @@ function image_field_storage_config_update(FieldStorageConfigInterface $field_st
     }
 
     // Is there an old file?
-    if ($fid_old && ($file_old = file_load($fid_old))) {
+    if ($fid_old && ($file_old = File::load($fid_old))) {
       \Drupal::service('file.usage')->delete($file_old, 'image', 'default_image', $field_storage->uuid());
     }
   }
@@ -422,7 +422,7 @@ function image_field_config_update(FieldConfigInterface $field) {
   $fid_old = $prior_instance->settings['default_image']['fid'];
 
   // If the old and new files do not match, update the default accordingly.
-  $file_new = $fid_new ? file_load($fid_new) : FALSE;
+  $file_new = $fid_new ? File::load($fid_new) : FALSE;
   if ($fid_new != $fid_old) {
     // Save the new file, if present.
     if ($file_new) {
@@ -431,7 +431,7 @@ function image_field_config_update(FieldConfigInterface $field) {
       \Drupal::service('file.usage')->add($file_new, 'image', 'default_image', $field->uuid());
     }
     // Delete the old file, if present.
-    if ($fid_old && ($file_old = file_load($fid_old))) {
+    if ($fid_old && ($file_old = File::load($fid_old))) {
       \Drupal::service('file.usage')->delete($file_old, 'image', 'default_image', $field->uuid());
     }
   }
@@ -455,7 +455,7 @@ function image_field_storage_config_delete(FieldStorageConfigInterface $field) {
 
   // The value of a managed_file element can be an array if #extended == TRUE.
   $fid = $field->settings['default_image']['fid'];
-  if ($fid && ($file = file_load($fid))) {
+  if ($fid && ($file = File::load($fid))) {
     \Drupal::service('file.usage')->delete($file, 'image', 'default_image', $field->uuid());
   }
 }
@@ -474,7 +474,7 @@ function image_field_config_delete(FieldConfigInterface $field) {
   $fid = $field->settings['default_image']['fid'];
 
   // Remove the default image when the instance is deleted.
-  if ($fid && ($file = file_load($fid))) {
+  if ($fid && ($file = File::load($fid))) {
     \Drupal::service('file.usage')->delete($file, 'image', 'default_image', $field->uuid());
   }
 }
diff --git a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php
index 62bef76..bb134ce 100644
--- a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php
+++ b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatterBase.php
@@ -9,6 +9,7 @@
 
 use Drupal\field\FieldConfigInterface;
 use Drupal\file\Plugin\Field\FieldFormatter\FileFormatterBase;
+use Drupal\file\Entity\File;
 
 /**
  * Base class for image file formatters.
@@ -32,7 +33,7 @@ public function prepareView(array $entities_items) {
           $default_image = $this->fieldDefinition->getFieldStorageDefinition()->getSetting('default_image');
         }
 
-        if (!empty($default_image['fid']) && ($file = file_load($default_image['fid']))) {
+        if (!empty($default_image['fid']) && ($file = File::load($default_image['fid']))) {
           $items->setValue(array(array(
             'is_default' => TRUE,
             'alt' => $default_image['alt'],
diff --git a/core/modules/image/src/Tests/ImageAdminStylesTest.php b/core/modules/image/src/Tests/ImageAdminStylesTest.php
index b84c87d..7ca1659 100644
--- a/core/modules/image/src/Tests/ImageAdminStylesTest.php
+++ b/core/modules/image/src/Tests/ImageAdminStylesTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\Component\Utility\String;
 use Drupal\image\ImageStyleInterface;
+use Drupal\file\Entity\File;
 
 /**
  * Tests creation, deletion, and editing of image styles and effects.
@@ -300,7 +301,7 @@ function testStyleReplacement() {
 
     // Get node field original image URI.
     $fid = $node->get($field_name)->target_id;
-    $original_uri = file_load($fid)->getFileUri();
+    $original_uri = File::load($fid)->getFileUri();
 
     // Test that image is displayed using newly created style.
     $this->drupalGet('node/' . $nid);
@@ -434,7 +435,7 @@ function testConfigImport() {
 
     // Get node field original image URI.
     $fid = $node->get($field_name)->target_id;
-    $original_uri = file_load($fid)->getFileUri();
+    $original_uri = File::load($fid)->getFileUri();
 
     // Test that image is displayed using newly created style.
     $this->drupalGet('node/' . $nid);
diff --git a/core/modules/image/src/Tests/ImageFieldDisplayTest.php b/core/modules/image/src/Tests/ImageFieldDisplayTest.php
index 1e8fd61..3f0aee1 100644
--- a/core/modules/image/src/Tests/ImageFieldDisplayTest.php
+++ b/core/modules/image/src/Tests/ImageFieldDisplayTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
 use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\file\Entity\File;
 
 /**
  * Tests the display of image fields.
@@ -60,7 +61,7 @@ function _testImageFieldFormatters($scheme) {
     $node = node_load($nid, TRUE);
 
     // Test that the default formatter is being used.
-    $image_uri = file_load($node->{$field_name}->target_id)->getFileUri();
+    $image_uri = File::load($node->{$field_name}->target_id)->getFileUri();
     $image = array(
       '#theme' => 'image',
       '#uri' => $image_uri,
@@ -198,7 +199,7 @@ function testImageFieldSettings() {
     $node = node_load($nid, TRUE);
     $image_style = array(
       '#theme' => 'image_style',
-      '#uri' => file_load($node->{$field_name}->target_id)->getFileUri(),
+      '#uri' => File::load($node->{$field_name}->target_id)->getFileUri(),
       '#width' => 40,
       '#height' => 20,
       '#style_name' => 'medium',
@@ -209,7 +210,7 @@ function testImageFieldSettings() {
     // Add alt/title fields to the image and verify that they are displayed.
     $image = array(
       '#theme' => 'image',
-      '#uri' => file_load($node->{$field_name}->target_id)->getFileUri(),
+      '#uri' => File::load($node->{$field_name}->target_id)->getFileUri(),
       '#alt' => $this->randomMachineName(),
       '#title' => $this->randomMachineName(),
       '#width' => 40,
@@ -294,7 +295,7 @@ function testImageFieldDefaultImage() {
     \Drupal::entityManager()->clearCachedFieldDefinitions();
     $field_storage = FieldStorageConfig::loadByName('node', $field_name);
     $default_image = $field_storage->getSetting('default_image');
-    $file = file_load($default_image['fid']);
+    $file = File::load($default_image['fid']);
     $this->assertTrue($file->isPermanent(), 'The default image status is permanent.');
     $image = array(
       '#theme' => 'image',
@@ -316,7 +317,7 @@ function testImageFieldDefaultImage() {
     $node = node_load($nid, TRUE);
     $image = array(
       '#theme' => 'image',
-      '#uri' => file_load($node->{$field_name}->target_id)->getFileUri(),
+      '#uri' => File::load($node->{$field_name}->target_id)->getFileUri(),
       '#width' => 40,
       '#height' => 20,
     );
@@ -353,7 +354,7 @@ function testImageFieldDefaultImage() {
 
     $private_field_storage = FieldStorageConfig::loadByName('node', $private_field_name);
     $default_image = $private_field_storage->getSetting('default_image');
-    $file = file_load($default_image['fid']);
+    $file = File::load($default_image['fid']);
     $this->assertEqual('private', file_uri_scheme($file->getFileUri()), 'Default image uses private:// scheme.');
     $this->assertTrue($file->isPermanent(), 'The default image status is permanent.');
     // Create a new node with no image attached and ensure that default private
diff --git a/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php b/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php
index 48645c1..0db7ce6 100644
--- a/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php
+++ b/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\migrate\MigrateExecutable;
 use Drupal\migrate_drupal\Tests\MigrateDrupalTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * file migration.
@@ -46,7 +47,7 @@ protected function setUp() {
    */
   public function testFiles() {
     /** @var \Drupal\file\FileInterface $file */
-    $file = entity_load('file', 1);
+    $file = File::load(1);
     $this->assertEqual($file->getFilename(), 'Image1.png');
     $this->assertEqual($file->getSize(), 39325);
     $this->assertEqual($file->getFileUri(), 'public://image-1.png');
@@ -66,7 +67,7 @@ public function testFiles() {
     $executable = new MigrateExecutable($migration, $this);
     $executable->import();
 
-    $file = entity_load('file', 2);
+    $file = File::load(2);
     $this->assertEqual($file->getFileUri(), 'public://core/modules/simpletest/files/image-2.jpg');
   }
 
diff --git a/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php b/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php
index ff204f7..1046131 100644
--- a/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php
+++ b/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\migrate\MigrateExecutable;
 use Drupal\migrate_drupal\Tests\MigrateDrupalTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * User pictures migration.
@@ -48,8 +49,7 @@ public function testUserPictures() {
     foreach (entity_load('migration', 'd6_user_picture_file')->getIdMap() as $destination_ids) {
       $file_ids[] = reset($destination_ids);
     }
-    $files = entity_load_multiple('file', $file_ids);
-    /** @var \Drupal\file\FileInterface $file */
+    $files = File::loadMultiple($file_ids);
     $file = array_shift($files);
     $this->assertEqual($file->getFilename(), 'image-test.jpg');
     $this->assertEqual($file->getFileUri(), 'public://image-test.jpg');
diff --git a/core/modules/migrate_drupal/src/Tests/d6/MigrateUserTest.php b/core/modules/migrate_drupal/src/Tests/d6/MigrateUserTest.php
index 82f60f0..bf7bd9f 100644
--- a/core/modules/migrate_drupal/src/Tests/d6/MigrateUserTest.php
+++ b/core/modules/migrate_drupal/src/Tests/d6/MigrateUserTest.php
@@ -10,6 +10,7 @@
 use Drupal\Core\Database\Database;
 use Drupal\migrate\MigrateExecutable;
 use Drupal\migrate_drupal\Tests\MigrateDrupalTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * Users migration.
@@ -174,7 +175,7 @@ public function testUser() {
       // We have one empty picture in the data so don't try load that.
       if (!empty($source->picture)) {
         // Test the user picture.
-        $file = file_load($user->user_picture->target_id);
+        $file = File::load($user->user_picture->target_id);
         $this->assertEqual($file->getFilename(), basename($source->picture));
       }
 
diff --git a/core/modules/rdf/src/Tests/FileFieldAttributesTest.php b/core/modules/rdf/src/Tests/FileFieldAttributesTest.php
index 8d89b0a..43f71e7 100644
--- a/core/modules/rdf/src/Tests/FileFieldAttributesTest.php
+++ b/core/modules/rdf/src/Tests/FileFieldAttributesTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\rdf\Tests;
 
 use Drupal\file\Tests\FileFieldTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * Tests the RDFa markup of filefields.
@@ -66,7 +67,7 @@ protected function setUp() {
     $nid = $this->uploadNodeFile($test_file, $this->fieldName, $type_name);
 
     $this->node = node_load($nid, TRUE);
-    $this->file = file_load($this->node->{$this->fieldName}->target_id);
+    $this->file = File::load($this->node->{$this->fieldName}->target_id);
 
   }
 
diff --git a/core/modules/rdf/src/Tests/ImageFieldAttributesTest.php b/core/modules/rdf/src/Tests/ImageFieldAttributesTest.php
index fbf0c6d..6f74cfe 100644
--- a/core/modules/rdf/src/Tests/ImageFieldAttributesTest.php
+++ b/core/modules/rdf/src/Tests/ImageFieldAttributesTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\rdf\Tests;
 
 use Drupal\image\Tests\ImageFieldTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * Tests the RDFa markup of imagefields.
@@ -66,7 +67,7 @@ protected function setUp() {
     // Save a node with the image.
     $nid = $this->uploadNodeImage($image, $this->fieldName, 'article');
     $this->node = node_load($nid);
-    $this->file = file_load($this->node->{$this->fieldName}->target_id);
+    $this->file = File::load($this->node->{$this->fieldName}->target_id);
   }
 
   /**
diff --git a/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php b/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php
index 9759544..85395c9 100644
--- a/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php
+++ b/core/modules/responsive_image/src/Tests/ResponsiveImageFieldDisplayTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\responsive_image\Tests;
 
 use Drupal\image\Tests\ImageFieldTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * Tests responsive image display formatter.
@@ -87,7 +88,7 @@ public function _testResponsiveImageFieldFormatters($scheme) {
     $node = node_load($nid, TRUE);
 
     // Test that the default formatter is being used.
-    $image_uri = file_load($node->{$field_name}->target_id)->getFileUri();
+    $image_uri = File::load($node->{$field_name}->target_id)->getFileUri();
     $image = array(
       '#theme' => 'image',
       '#uri' => $image_uri,
diff --git a/core/modules/system/src/Tests/Entity/EntityCrudHookTest.php b/core/modules/system/src/Tests/Entity/EntityCrudHookTest.php
index 48fd3b1..9b80e02 100644
--- a/core/modules/system/src/Tests/Entity/EntityCrudHookTest.php
+++ b/core/modules/system/src/Tests/Entity/EntityCrudHookTest.php
@@ -12,6 +12,7 @@
 use Drupal\Core\Database\Database;
 use Drupal\Core\Language\LanguageInterface;
 use Drupal\block\Entity\Block;
+use Drupal\file\Entity\File;
 
 /**
  * Tests the invocation of hooks when creating, inserting, loading, updating or
@@ -252,7 +253,7 @@ public function testFileHooks() {
     ));
 
     $GLOBALS['entity_crud_hook_test'] = array();
-    $file = file_load($file->id());
+    $file = File::load($file->id());
 
     $this->assertHookMessageOrder(array(
       'entity_crud_hook_test_entity_load called for type file',
diff --git a/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.module b/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.module
index 0325dbd..4cf118f 100644
--- a/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.module
+++ b/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.module
@@ -6,6 +6,7 @@
  */
 
 use Drupal\Core\Entity\EntityInterface;
+use Drupal\file\Entity\File;
 
 /**
  * Implements hook_entity_create().
diff --git a/core/modules/taxonomy/src/Tests/TaxonomyImageTest.php b/core/modules/taxonomy/src/Tests/TaxonomyImageTest.php
index 9cb3372..8377c22 100644
--- a/core/modules/taxonomy/src/Tests/TaxonomyImageTest.php
+++ b/core/modules/taxonomy/src/Tests/TaxonomyImageTest.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\taxonomy\Tests;
 
+use Drupal\file\Entity\File;
+
 /**
  * Tests access checks of private image fields.
  *
@@ -83,7 +85,7 @@ public function testTaxonomyImageAccess() {
     // Create a user that should have access to the file and one that doesn't.
     $access_user = $this->drupalCreateUser(array('access content'));
     $no_access_user = $this->drupalCreateUser();
-    $image = file_load($term->field_test->target_id);
+    $image = File::load($term->field_test->target_id);
     $this->drupalLogin($access_user);
     $this->drupalGet(file_create_url($image->getFileUri()));
     $this->assertResponse(200, 'Private image on term is accessible with right permission');
diff --git a/core/modules/user/src/Tests/UserPictureTest.php b/core/modules/user/src/Tests/UserPictureTest.php
index 639c382..92d36c5 100644
--- a/core/modules/user/src/Tests/UserPictureTest.php
+++ b/core/modules/user/src/Tests/UserPictureTest.php
@@ -9,6 +9,7 @@
 
 use Drupal\Core\Cache\Cache;
 use Drupal\simpletest\WebTestBase;
+use Drupal\file\Entity\File;
 
 /**
  * Tests user picture functionality.
@@ -72,7 +73,9 @@ function testCreateDeletePicture() {
     \Drupal::service('cron')->run();
 
     // Verify that the image has been deleted.
-    $this->assertFalse(file_load($file->id(), TRUE), 'File was removed from the database.');
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($file->id()));
+    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
     // Clear out PHP's file stat cache so we see the current value.
     clearstatcache(TRUE, $file->getFileUri());
     $this->assertFalse(is_file($file->getFileUri()), 'File was removed from the file system.');
@@ -134,6 +137,8 @@ function saveUserPicture($image) {
 
     // Load actual user data from database.
     $account = user_load($this->web_user->id(), TRUE);
-    return file_load($account->user_picture->target_id, TRUE);
+    $file_storage = $this->container->get('entity.manager')->getStorage('file');
+    $file_storage->resetCache(array($account->user_picture->target_id));
+    return File::load($account->user_picture->target_id);
   }
 }