diff --git a/editor/components/code-editor/code-editor.tsx b/editor/components/code-editor/code-editor.tsx
index 33665d02..bfefce49 100644
--- a/editor/components/code-editor/code-editor.tsx
+++ b/editor/components/code-editor/code-editor.tsx
@@ -51,8 +51,8 @@ export function CodeEditor({
         onChange={(v: string, e) => {
           onChange?.(filekey, v, e);
         }}
-        defaultLanguage={file.language}
-        defaultValue={file.raw}
+        language={file.language}
+        value={file.raw}
       />
     </>
   );
diff --git a/editor/components/code-editor/monaco-utils/register.ts b/editor/components/code-editor/monaco-utils/register.ts
index 354982d0..b56784c7 100644
--- a/editor/components/code-editor/monaco-utils/register.ts
+++ b/editor/components/code-editor/monaco-utils/register.ts
@@ -2,7 +2,6 @@ import * as monaco from "monaco-editor";
 import { Monaco, OnMount } from "@monaco-editor/react";
 import { registerDocumentPrettier } from "@code-editor/prettier-services";
 import { registerJsxHighlighter } from "@code-editor/jsx-syntax-highlight-services";
-
 type CompilerOptions = monaco.languages.typescript.CompilerOptions;
 
 export const initEditor: OnMount = (editor, monaco) => {
diff --git a/editor/components/code-editor/monaco.tsx b/editor/components/code-editor/monaco.tsx
index b949eb17..919011a0 100644
--- a/editor/components/code-editor/monaco.tsx
+++ b/editor/components/code-editor/monaco.tsx
@@ -1,20 +1,17 @@
-import React, { useRef, useEffect } from "react";
-import Editor, {
-  useMonaco,
-  Monaco,
-  OnMount,
-  OnChange,
-} from "@monaco-editor/react";
+import React, { useRef } from "react";
+import Editor, { OnMount, OnChange } from "@monaco-editor/react";
 import * as monaco from "monaco-editor/esm/vs/editor/editor.api";
 import { MonacoEmptyMock } from "./monaco-mock-empty";
 import { register } from "./monaco-utils";
 import { __dangerous__lastFormattedValue__global } from "@code-editor/prettier-services";
+import { debounce } from "utils/debounce";
+import { downloadFile } from "utils/download";
 
 type ICodeEditor = monaco.editor.IStandaloneCodeEditor;
 
 export interface MonacoEditorProps {
-  defaultValue?: string;
-  defaultLanguage?: string;
+  value?: string;
+  language?: string;
   onChange?: OnChange;
   width?: number | string;
   height?: number | string;
@@ -23,7 +20,8 @@ export interface MonacoEditorProps {
 
 export function MonacoEditor(props: MonacoEditorProps) {
   const instance = useRef<{ editor: ICodeEditor; format: any } | null>(null);
-  const activeModel = useRef<any>();
+
+  const path = "app." + lang2ext(props.language);
 
   const onMount: OnMount = (editor, monaco) => {
     const format = editor.getAction("editor.action.formatDocument");
@@ -31,8 +29,6 @@ export function MonacoEditor(props: MonacoEditorProps) {
 
     instance.current = { editor, format };
 
-    activeModel.current = editor.getModel();
-
     register.initEditor(editor, monaco);
 
     editor.addCommand(monaco.KeyMod.CtrlCmd | monaco.KeyCode.KeyS, function () {
@@ -41,6 +37,7 @@ export function MonacoEditor(props: MonacoEditorProps) {
 
     // disabled. todo: find a way to format on new line, but also with adding new line.
     // editor.addCommand(monaco.KeyCode.Enter, function () {
+    //   // add new line via script, then run format
     //   format.run();
     // });
 
@@ -50,9 +47,24 @@ export function MonacoEditor(props: MonacoEditorProps) {
       rename.run();
     });
 
-    editor.onDidChangeModelContent((e) => {
-      /* add here */
+    editor.addAction({
+      // An unique identifier of the contributed action.
+      id: "export-module-as-file",
+
+      // A label of the action that will be presented to the user.
+      label: "Export as file",
+      precondition: null,
+      keybindingContext: null,
+      contextMenuGroupId: "navigation",
+      contextMenuOrder: 1.5,
+      run: function (ed) {
+        downloadFile({ data: ed.getModel().getValue(), filename: path });
+      },
     });
+
+    editor.onDidChangeModelContent(() =>
+      debounce(() => editor.saveViewState(), 200)
+    );
   };
 
   return (
@@ -61,11 +73,10 @@ export function MonacoEditor(props: MonacoEditorProps) {
       onMount={onMount}
       width={props.width}
       height={props.height}
-      defaultLanguage={
-        pollyfill_language(props.defaultLanguage) ?? "typescript"
-      }
+      language={pollyfill_language(props.language) ?? "typescript"}
+      path={path}
       loading={<MonacoEmptyMock l={5} />}
-      defaultValue={props.defaultValue ?? "// no content"}
+      value={props.value ?? "// no content"}
       theme="vs-dark"
       onChange={(...v) => {
         if (v[0] === __dangerous__lastFormattedValue__global) {
@@ -84,6 +95,23 @@ export function MonacoEditor(props: MonacoEditorProps) {
   );
 }
 
+const lang2ext = (lang: string) => {
+  switch (lang) {
+    case "typescript":
+      return "ts";
+    case "javascript":
+      return "js";
+    case "tsx":
+      return "tsx";
+    case "jsx":
+      return "jsx";
+    case "dart":
+      return "dart";
+    default:
+      return lang;
+  }
+};
+
 const pollyfill_language = (lang: string) => {
   switch (lang) {
     case "tsx":
diff --git a/editor/pages/figma/inspect-frame.tsx b/editor/pages/figma/inspect-frame.tsx
index e1a2f037..7222de65 100644
--- a/editor/pages/figma/inspect-frame.tsx
+++ b/editor/pages/figma/inspect-frame.tsx
@@ -24,8 +24,8 @@ export default function InspectAutolayout() {
       <MonacoEditor
         key={figma?.id}
         height="100vh"
-        defaultLanguage="json"
-        defaultValue={JSON.stringify(inspectionTarget, null, 2)}
+        language="json"
+        value={JSON.stringify(inspectionTarget, null, 2)}
       />
     </>
   );
diff --git a/editor/pages/figma/inspect-raw.tsx b/editor/pages/figma/inspect-raw.tsx
index 7acd05a1..ece227dc 100644
--- a/editor/pages/figma/inspect-raw.tsx
+++ b/editor/pages/figma/inspect-raw.tsx
@@ -20,8 +20,8 @@ export default function InspectRaw() {
       <MonacoEditor
         key={figma.id}
         height="100vh"
-        defaultLanguage="json"
-        defaultValue={JSON.stringify(figma, null, 2)}
+        language="json"
+        value={JSON.stringify(figma, null, 2)}
       />
     </>
   );
diff --git a/editor/scaffolds/code/index.tsx b/editor/scaffolds/code/index.tsx
index 207f3b24..11a41cf6 100644
--- a/editor/scaffolds/code/index.tsx
+++ b/editor/scaffolds/code/index.tsx
@@ -193,10 +193,11 @@ export function CodeSegment() {
         files={
           code
             ? {
-                "index.tsx": {
+                // TODO: make this to match framework
+                "App.tsx": {
                   raw: code.raw,
                   language: framework_config.language,
-                  name: "index.tsx",
+                  name: "App.tsx",
                 },
               }
             : {
diff --git a/editor/utils/download/index.ts b/editor/utils/download/index.ts
new file mode 100644
index 00000000..8d6f4568
--- /dev/null
+++ b/editor/utils/download/index.ts
@@ -0,0 +1,15 @@
+export function downloadFile({
+  data,
+  filename,
+}: {
+  data: string;
+  filename: string;
+}) {
+  var blob = new Blob([data], { type: "text/txt" });
+  var csvURL = window.URL.createObjectURL(blob);
+  const tempLink = document.createElement("a");
+  tempLink.href = csvURL;
+  tempLink.setAttribute("download", filename);
+  tempLink.click();
+  tempLink.remove();
+}