diff --git a/linters/plugin.yaml b/linters/plugin.yaml
index bb1575a48..179076884 100644
--- a/linters/plugin.yaml
+++ b/linters/plugin.yaml
@@ -538,6 +538,12 @@ lint:
       extensions:
         - xib
 
+    - name: xml
+      extensions:
+        - xml
+      comments:
+        - slashes-xml
+
     - name: yaml
       extensions:
         - yaml
diff --git a/linters/prettier/plugin.yaml b/linters/prettier/plugin.yaml
index 07ac90e38..b68809406 100644
--- a/linters/prettier/plugin.yaml
+++ b/linters/prettier/plugin.yaml
@@ -9,17 +9,8 @@ tools:
 lint:
   definitions:
     - name: prettier
-      files:
-        - typescript
-        - yaml
-        - css
-        - sass
-        - html
-        - markdown
-        - json
-        - javascript
-        - graphql
-        - prettier_supported_configs
+      extra_packages:
+        - "@prettier/plugin-xml"
       commands:
         - name: format
           output: rewrite
@@ -28,6 +19,27 @@ lint:
           batch: true
           in_place: true
           formatter: true
+          files:
+            - typescript
+            - yaml
+            - css
+            - sass
+            - html
+            - markdown
+            - json
+            - javascript
+            - graphql
+            - prettier_supported_configs
+        - name: format-xml
+          output: rewrite
+          run: prettier --plugin=@prettier/plugin-xml -w ${target}
+          success_codes: [0]
+          batch: true
+          in_place: true
+          formatter: true
+          version: ">=3.0.0"
+          files:
+            - xml
       tools: [prettier]
       suggest_if: files_present
       direct_configs:
diff --git a/linters/prettier/test_data/prettier_v2.6.2_xml_test.fmt.shot b/linters/prettier/test_data/prettier_v2.6.2_xml_test.fmt.shot
new file mode 100644
index 000000000..610d1f59d
--- /dev/null
+++ b/linters/prettier/test_data/prettier_v2.6.2_xml_test.fmt.shot
@@ -0,0 +1,25 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Testing formatter prettier test xml_test 1`] = `
+"<?xml version="1.0" encoding="UTF-8"?>
+
+
+
+
+
+
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <array>
+    <dict>
+      <key>choiceAttribute</key>
+      <string>customLocation</string>
+         <key>attributeSetting</key>
+      <string>INSTALL_DIR</string>
+       <key>choiceIdentifier</key>
+      <string>default</string>
+    </dict>
+    </array>
+</plist>
+"
+`;
diff --git a/linters/prettier/test_data/prettier_v3.0.0_xml_test.fmt.shot b/linters/prettier/test_data/prettier_v3.0.0_xml_test.fmt.shot
new file mode 100644
index 000000000..2c7bfc0f7
--- /dev/null
+++ b/linters/prettier/test_data/prettier_v3.0.0_xml_test.fmt.shot
@@ -0,0 +1,20 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Testing formatter prettier test xml_test 1`] = `
+"<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
+  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <array>
+    <dict>
+      <key>choiceAttribute</key>
+      <string>customLocation</string>
+         <key>attributeSetting</key>
+      <string>INSTALL_DIR</string>
+       <key>choiceIdentifier</key>
+      <string>default</string>
+    </dict>
+    </array>
+</plist>
+"
+`;
diff --git a/linters/prettier/test_data/xml_test.in.xml b/linters/prettier/test_data/xml_test.in.xml
new file mode 100644
index 000000000..ddb4b953b
--- /dev/null
+++ b/linters/prettier/test_data/xml_test.in.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+
+
+
+
+
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <array>
+    <dict>
+      <key>choiceAttribute</key>
+      <string>customLocation</string>
+         <key>attributeSetting</key>
+      <string>INSTALL_DIR</string>
+       <key>choiceIdentifier</key>
+      <string>default</string>
+    </dict>
+    </array>
+</plist>