diff --git a/configs/ext.json b/configs/ext.json
new file mode 100644
index 0000000..3ef1240
--- /dev/null
+++ b/configs/ext.json
@@ -0,0 +1,18 @@
+{
+    "comments": {
+        "lineComment": "//",
+        "blockComment": ["/*", "*/"]
+    },
+    "brackets": [
+        ["{", "}"]
+    ],
+    "autoClosingPairs": [
+        ["[", "]"],
+        ["\"", "\""],
+        ["(", ")"]
+    ],
+    "surroundingPairs": [
+        ["'", "'"],
+        ["\"", "\""]
+    ]
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index f03631b..9c78cc7 100644
--- a/package.json
+++ b/package.json
@@ -101,7 +101,15 @@
 				"editor.detectIndentation": true,
 				"editor.trimAutoWhitespace": true,
 				"editor.autoClosingBrackets": "always"
-			}
+			},
+      "[ext]": {
+				"editor.quickSuggestions": true,
+				"editor.tabSize": 4,
+				"editor.insertSpaces": false,
+				"editor.detectIndentation": true,
+				"editor.trimAutoWhitespace": true,
+				"editor.autoClosingBrackets": "always"
+      }
 		},
 		"debuggers": [
 			{
@@ -116,6 +124,11 @@
 				"language": "sqf",
 				"scopeName": "source.sqf",
 				"path": "./syntaxes/sqf.min.json"
+			},
+			{
+				"language": "ext",
+				"scopeName": "description.ext",
+				"path": "./syntaxes/ext.min.json"
 			}
 		],
 		"languages": [
@@ -131,6 +144,17 @@
 					".sqm"
 				],
 				"configuration": "./configs/sqf.configuration.json"
+			},
+      {
+			  "id": "ext",
+				"aliases": [
+					"Arma header file"
+				],
+				"extensions": [
+					".ext",
+					".hpp"
+				],
+				"configuration": "./configs/ext.configuration.json"
 			}
 		],
 		"menus": {
diff --git a/syntaxes/ext.json b/syntaxes/ext.json
new file mode 100644
index 0000000..e16c3a7
--- /dev/null
+++ b/syntaxes/ext.json
@@ -0,0 +1,243 @@
+{
+	"scopeName": "description.ext",
+	"fileTypes": ["ext"],
+	"name": "ext",
+	"patterns": [
+		{ "include": "#strings" },
+		{ "include": "#numbers" },
+		{ "include": "#comments" }, 
+		{
+			"name": "storage.type",
+			"match": "\\b(class)\\b"
+		},
+		{
+			"begin": "^\\s*((#)\\s*(include(?:_next)?|import))\\b\\s*",
+			"beginCaptures": {
+				"1": {
+					"name": "keyword.control.directive.$3.ext"
+				},
+				"2": {
+					"name": "punctuation.definition.directive.ext"
+				}
+			},
+			"end": "(?=(?://|/\\*))|(?<!\\\\)(?=\\n)",
+			"name": "meta.preprocessor.include.ext",
+			"patterns": [
+				{
+					"include": "#line_continuation_character"
+				},
+				{
+					"begin": "\"",
+					"beginCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.begin.ext"
+						}
+					},
+					"end": "\"",
+					"endCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.end.ext"
+						}
+					},
+					"name": "string.quoted.double.include.ext"
+				},
+				{
+					"begin": "<",
+					"beginCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.begin.ext"
+						}
+					},
+					"end": ">",
+					"endCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.end.ext"
+						}
+					},
+					"name": "string.quoted.other.lt-gt.include.ext"
+				}
+			]
+		},
+		{
+			"begin": "(?x)\n^\\s* ((\\#)\\s*define) \\s+    # define\n((?<id>[a-zA-Z_$][\\w$]*))      # macro name\n(?:\n  (\\()\n    (\n      \\s* \\g<id> \\s*         # first argument\n      ((,) \\s* \\g<id> \\s*)*  # additional arguments\n      (?:\\.\\.\\.)?            # varargs ellipsis?\n    )\n  (\\))\n)?",
+			"beginCaptures": {
+				"1": {
+					"name": "keyword.control.directive.define.c"
+				},
+				"2": {
+					"name": "punctuation.definition.directive.c"
+				},
+				"3": {
+					"name": "entity.name.function.preprocessor.c"
+				},
+				"5": {
+					"name": "punctuation.definition.parameters.begin.c"
+				},
+				"6": {
+					"name": "variable.parameter.preprocessor.c"
+				},
+				"8": {
+					"name": "punctuation.separator.parameters.c"
+				},
+				"9": {
+					"name": "punctuation.definition.parameters.end.c"
+				}
+			},
+			"end": "(?=(?://|/\\*))|(?<!\\\\)(?=\\n)",
+			"name": "meta.preprocessor.macro.ext"
+		}
+	],
+	"repository": {
+		"line_continuation_character": {
+			"patterns": [
+				{
+					"match": "(\\\\)\\n",
+					"captures": {
+						"1": {
+							"name": "constant.character.escape.line-continuation.c"
+						}
+					}
+				}
+			]
+		},
+		"numbers": {
+			"patterns": [
+				{
+					"match": "\\b((0(x|X)[0-9a-fA-F]([0-9a-fA-F']*[0-9a-fA-F])?)|(0(b|B)[01]([01']*[01])?)|(([0-9]([0-9']*[0-9])?\\.?[0-9]*([0-9']*[0-9])?)|(\\.[0-9]([0-9']*[0-9])?))((e|E)(\\+|-)?[0-9]([0-9']*[0-9])?)?)(L|l|UL|ul|u|U|F|f|ll|LL|ull|ULL)?\\b",
+					"name": "constant.numeric.ext"
+				}
+			]
+		},
+		"comments": {
+			"patterns": [
+				{
+					"captures": {
+						"1": {
+							"name": "meta.toc-list.banner.block.c"
+						}
+					},
+					"match": "^/\\* =(\\s*.*?)\\s*= \\*/$\\n?",
+					"name": "comment.block.c"
+				},
+				{
+					"begin": "/\\*",
+					"beginCaptures": {
+						"0": {
+							"name": "punctuation.definition.comment.begin.c"
+						}
+					},
+					"end": "\\*/",
+					"endCaptures": {
+						"0": {
+							"name": "punctuation.definition.comment.end.c"
+						}
+					},
+					"name": "comment.block.c"
+				},
+				{
+					"match": "\\*/.*\\n",
+					"name": "invalid.illegal.stray-comment-end.c"
+				},
+				{
+					"captures": {
+						"1": {
+							"name": "meta.toc-list.banner.line.c"
+						}
+					},
+					"match": "^// =(\\s*.*?)\\s*=\\s*$\\n?",
+					"name": "comment.line.banner.cpp"
+				},
+				{
+					"begin": "(^[ \\t]+)?(?=//)",
+					"beginCaptures": {
+						"1": {
+							"name": "punctuation.whitespace.comment.leading.cpp"
+						}
+					},
+					"end": "(?!\\G)",
+					"patterns": [
+						{
+							"begin": "//",
+							"beginCaptures": {
+								"0": {
+									"name": "punctuation.definition.comment.cpp"
+								}
+							},
+							"end": "(?=\\n)",
+							"name": "comment.line.double-slash.cpp",
+							"patterns": [
+								{
+									"include": "#line_continuation_character"
+								}
+							]
+						}
+					]
+				}
+			]
+		},
+		"strings": {
+			"patterns": [
+				{
+					"begin": "(u|u8|U|L)?\"",
+					"beginCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.begin.ext"
+						},
+						"1": {
+							"name": "meta.encoding.ext"
+						}
+					},
+					"end": "\"",
+					"endCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.end.ext"
+						}
+					},
+					"name": "string.quoted.double.ext",
+					"patterns": [
+						{
+							"match": "\\\\u\\h{4}|\\\\U\\h{8}",
+							"name": "constant.character.escape.ext"
+						},
+						{
+							"match": "\\\\['\"?\\\\abfnrtv]",
+							"name": "constant.character.escape.ext"
+						},
+						{
+							"match": "\\\\[0-7]{1,3}",
+							"name": "constant.character.escape.ext"
+						},
+						{
+							"match": "\\\\x\\h+",
+							"name": "constant.character.escape.ext"
+						}
+					]
+				},
+				{
+					"begin": "(u|u8|U|L)?R\"(?:([^ ()\\\\\\t]{0,16})|([^ ()\\\\\\t]*))\\(",
+					"beginCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.begin.ext"
+						},
+						"1": {
+							"name": "meta.encoding.ext"
+						},
+						"3": {
+							"name": "invalid.illegal.delimiter-too-long.ext"
+						}
+					},
+					"end": "\\)\\2(\\3)\"",
+					"endCaptures": {
+						"0": {
+							"name": "punctuation.definition.string.end.ext"
+						},
+						"1": {
+							"name": "invalid.illegal.delimiter-too-long.ext"
+						}
+					},
+					"name": "string.quoted.double.raw.ext"
+				}
+			]
+		} 
+	}
+}
\ No newline at end of file