diff --git a/icons/nix_plot.png b/icons/nix_plot.png
new file mode 100644
index 0000000..5f1bbf8
Binary files /dev/null and b/icons/nix_plot.png differ
diff --git a/icons/nix_table.png b/icons/nix_table.png
new file mode 100644
index 0000000..a6ea080
Binary files /dev/null and b/icons/nix_table.png differ
diff --git a/icons/quit.png b/icons/quit.png
new file mode 100644
index 0000000..ed27c97
Binary files /dev/null and b/icons/quit.png differ
diff --git a/main.py b/main.py
index 993303e..5ac00de 100644
--- a/main.py
+++ b/main.py
@@ -7,8 +7,7 @@ def main():
     app = QApplication(sys.argv)
     window = NixView()
     window.show()
-    app.exec()
-    return 0
+    sys.exit(app.exec_())
 
 if __name__ == "__main__":
     main()
diff --git a/main_window.py b/main_window.py
index c3936e3..83c99ae 100644
--- a/main_window.py
+++ b/main_window.py
@@ -1,29 +1,42 @@
-from PyQt5.QtWidgets import QFrame, QLabel, QListWidget, QMainWindow, QStackedLayout, QToolBar, QAction, QStatusBar, QVBoxLayout, QWidget, QGridLayout, QSpacerItem, QSizePolicy
-from PyQt5.QtGui import QIcon, QPixmap
+import sys
+from PyQt5.QtWidgets import QFrame, QLabel, QListWidget, QMainWindow, QMenuBar, QStackedLayout, QToolBar, QAction, QStatusBar, QVBoxLayout, QWidget, QGridLayout, QSpacerItem, QSizePolicy
+from PyQt5.QtGui import QIcon, QPixmap, QKeySequence
 from PyQt5.QtCore import Qt, QSize
 import typing
 
+from file_handler import FileHandler
+
 class NixView(QMainWindow):
     
     def __init__(self, *args, **kwargs):
         super(NixView, self).__init__(*args, **kwargs)
         self.setWindowTitle("NixView")
+        self.setWindowIcon(QIcon('./icons/nixview.icns'))
 
-        cw = CentralWidget(self)
-        self.setCentralWidget(cw)
+        self._file_handler = FileHandler()
+        self.setStatusBar(QStatusBar(self))
+        self.setMenuBar(QMenuBar(self))
         self.create_actions()
         
-        self.setStatusBar(QStatusBar(self))
-
+        cw = CentralWidget(self)
+        self.setCentralWidget(cw)
+        self.show()
 
     def create_actions(self):
         self._file_open_action = QAction(QIcon("./icons/nix_open.png"), "Open", self)
         self._file_open_action.setStatusTip("Open nix file")
-        self._file_open_action.triggered.connect(self.onFileOpenClick)
+        self._file_open_action.setShortcut(QKeySequence("Ctrl+o"))
+        self._file_open_action.triggered.connect(self.on_file_open)
         
         self._file_close_action = QAction(QIcon("./icons/nix_close.png"), "Close", self)
-        self._file_close_action.setStatusTip("Close nix file")
-        self._file_close_action.triggered.connect(self.onFileCloseClick)
+        self._file_close_action.setStatusTip("Close current nix file")
+        self._file_close_action.setShortcut(QKeySequence("Ctrl+w"))
+        self._file_close_action.setEnabled(False)
+        self._file_close_action.triggered.connect(self.on_file_close)
+        
+        self._quit_action = QAction(QIcon("./icons/quit.png"), "Quit", self)
+        self._quit_action.setStatusTip("Close current file and quit")
+        self._quit_action.triggered.connect(self.on_quit)
         
         self.create_toolbar()
         self.create_menu()
@@ -35,18 +48,31 @@ class NixView(QMainWindow):
 
         self._toolbar.addAction(self._file_open_action)
         self._toolbar.addAction(self._file_close_action)
+        self._toolbar.addAction(self._quit_action)
         self.addToolBar(self._toolbar)
 
 
     def create_menu(self):
-        pass
+        menu = self.menuBar()
+        file_menu = menu.addMenu("&File")
+        file_menu.addAction(self._file_open_action)
+        file_menu.addAction(self._file_close_action)
+        file_menu.addAction(self._quit_action)
+        self.setMenuBar(menu)
     
-    def onFileOpenClick(self, s):
-        print("click", s)
+    def on_file_open(self, s):
+        success, msg = self._file_handler.open("nix_test.h5")
+        self.statusBar().showMessage(msg, 5000)
+        self._file_close_action.setEnabled(success)
 
-    def onFileCloseClick(self, s):
-        print("click", s)
+    def on_file_close(self, s):
+        self._file_handler.close()
+        self.statusBar().showMessage("Successfully closed current file", 1000)
 
+    def on_quit(self, s):
+        self._file_handler.close()
+        sys.exit()
+        
 
 class CentralWidget(QWidget):
     
@@ -66,7 +92,7 @@ class SplashScreen(QWidget):
         super().__init__(parent=parent)
         layout = QGridLayout()
         self.setLayout(layout)
-        self.setStyleSheet("background-color: red;")
+        self.setStyleSheet("background-color: white;")
         label = QLabel()
         label.setPixmap(QPixmap("./icons/nixview256.png"))
         label.setAlignment(Qt.AlignCenter)