diff --git a/gui/raw_ui/main_window.ui b/gui/raw_ui/main_window.ui
index 67a0bc0..a765abd 100644
--- a/gui/raw_ui/main_window.ui
+++ b/gui/raw_ui/main_window.ui
@@ -6,20 +6,30 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>800</width>
-    <height>600</height>
+    <width>861</width>
+    <height>548</height>
    </rect>
   </property>
   <property name="windowTitle">
-   <string>MainWindow</string>
+   <string>Bread Editor</string>
   </property>
-  <widget class="QWidget" name="centralwidget"/>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QTabWidget" name="openFileTabs">
+      <property name="currentIndex">
+       <number>-1</number>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
   <widget class="QMenuBar" name="menubar">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>800</width>
+     <width>861</width>
      <height>20</height>
     </rect>
    </property>
diff --git a/main.py b/main.py
index 3215218..abcc6dd 100644
--- a/main.py
+++ b/main.py
@@ -10,7 +10,7 @@ from connect_gui import connect_gui
 class BreadEditor:
     def __init__(self):
         self.utils = Utils(self)
-        self.open_files = []
+        self.open_files = {}
 
         self.qt_app = QtWidgets.QApplication(sys.argv)
 
@@ -21,6 +21,13 @@ class BreadEditor:
 
         connect_gui(self)
 
+    def open_file(self, file_path):
+        self.open_files[file_path] = file_path.split("/")[-1]  # set name that shows in the tab list
+        self.main_window.openFileTabs.addTab(
+            QtWidgets.QWidget(self.main_window.openFileTabs),
+            self.open_files[file_path]
+        )
+
     def run(self):
         self.QTMainWindow.show()
         sys.exit(self.qt_app.exec())
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..31d9bef
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+PyQt6>=6.4.2
\ No newline at end of file
diff --git a/utils.py b/utils.py
index 959716d..fe46e30 100644
--- a/utils.py
+++ b/utils.py
@@ -18,4 +18,5 @@ class Utils:
         dialog.setViewMode(QFileDialog.ViewMode.List)
 
         if dialog.exec():
-            self.app.open_files += dialog.selectedFiles()
+            for file_path in dialog.selectedFiles():
+                self.app.open_file(file_path)