diff --git a/Exercise sheet 5/exercise_sheet_05.ipynb b/Exercise sheet 5/exercise_sheet_05.ipynb
index 9771602..2e8c62f 100644
--- a/Exercise sheet 5/exercise_sheet_05.ipynb	
+++ b/Exercise sheet 5/exercise_sheet_05.ipynb	
@@ -20,12 +20,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "f6c9a3b3",
    "metadata": {},
    "outputs": [],
    "source": [
-    "NAME = \"\"\n",
+    "NAME = \"Kees van Kempen\"\n",
     "NAMES_OF_COLLABORATORS = \"\""
    ]
   },
@@ -62,7 +62,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "id": "032f87d0",
    "metadata": {
     "deletable": false,
@@ -226,7 +226,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "id": "9df6a9cc",
    "metadata": {
     "deletable": false,
@@ -242,7 +242,22 @@
      "task": false
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "testarray[325] = 0.6746227526601625\n",
+      "f[\"test\"][325] = 0.6746227526601625\n",
+      "test[325] = 0.6746227526601625\n",
+      "f[\"test-plus-one\"][325] = 1.6746227526601625\n",
+      "f[\"test\"][325] = 0.6746227526601625\n",
+      "f[\"test-plus-one\"][325] = 1.6746227526601625\n",
+      "data sets in test.hdf5: ['test', 'test-plus-one']\n",
+      "data sets in test.hdf5: ['test-plus-one']\n"
+     ]
+    }
+   ],
    "source": [
     "import h5py\n",
     "\n",
@@ -909,7 +924,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
diff --git a/Exercise sheet 5/test.hdf5 b/Exercise sheet 5/test.hdf5
new file mode 100644
index 0000000..f4985e8
Binary files /dev/null and b/Exercise sheet 5/test.hdf5 differ