diff --git a/demo/demo.js b/demo/demo.js
new file mode 100644
index 0000000000..58e7fdfd8d
--- /dev/null
+++ b/demo/demo.js
@@ -0,0 +1,15 @@
+const docx = require('../build');
+
+var doc = new docx.Document();
+
+var paragraph = new docx.Paragraph("Hello World");
+var institutionText = new docx.TextRun("University College London").bold();
+var dateText = new docx.TextRun("5th Dec 2015").tab().bold();
+paragraph.addText(institutionText);
+paragraph.addText(dateText);
+
+doc.addParagraph(paragraph);
+var exporter = new docx.LocalPacker(doc);
+exporter.pack('My Document');
+
+console.log('Document created succesfully at project root!');
\ No newline at end of file
diff --git a/package.json b/package.json
index 9574cc3ac4..2cee1629ad 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,8 @@
     "test": "mocha ./build-tests --recursive",
     "prepublishOnly": "npm run build",
     "lint": "tslint --project ./ts",
-    "build": "rimraf ./build && tsc -p ts"
+    "build": "rimraf ./build && tsc -p ts",
+    "demo": "npm run build && node ./demo/demo.js"
   },
   "files": [
     "ts",
diff --git a/ts/export/packer/express.ts b/ts/export/packer/express.ts
index 539fac40d4..737c220779 100644
--- a/ts/export/packer/express.ts
+++ b/ts/export/packer/express.ts
@@ -18,7 +18,7 @@ export class ExpressPacker extends Packer {
     }
 
     public pack(name: string): void {
-        this.res.attachment(name + ".docx");
+        this.res.attachment(`${name}.docx`);
         super.pack(this.res);
     }
 }
diff --git a/ts/export/packer/local.ts b/ts/export/packer/local.ts
index 6b8c371c94..319f2e16f1 100644
--- a/ts/export/packer/local.ts
+++ b/ts/export/packer/local.ts
@@ -13,7 +13,7 @@ export class LocalPacker extends Packer {
     }
 
     public pack(path: string): void {
-        this.stream = fs.createWriteStream(path);
+        this.stream = fs.createWriteStream(`${path}.docx`);
         super.pack(this.stream);
     }
 }