diff --git a/spreadsheet/src/module-info.java b/spreadsheet/src/module-info.java
new file mode 100644
index 0000000..62543a1
--- /dev/null
+++ b/spreadsheet/src/module-info.java
@@ -0,0 +1,8 @@
+/**
+ * 
+ */
+/**
+ * 
+ */
+module spreadsheet {
+}
\ No newline at end of file
diff --git a/spreadsheet/src/spreadsheet/app/App.java b/spreadsheet/src/spreadsheet/app/App.java
new file mode 100644
index 0000000..183b6dd
--- /dev/null
+++ b/spreadsheet/src/spreadsheet/app/App.java
@@ -0,0 +1,7 @@
+package spreadsheet.app;
+
+public class App {
+	public static void main(String... args) {
+		System.out.println("Hello World!");
+	}
+}