diff --git a/Seth_A99501/day21.ipynb b/Seth_A99501/day21.ipynb
new file mode 100644
index 00000000..5e2e2dda
--- /dev/null
+++ b/Seth_A99501/day21.ipynb
@@ -0,0 +1,129 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The content is:\n",
+      "Accountability Communication Organisation \n"
+     ]
+    }
+   ],
+   "source": [
+    "#read and display data\n",
+    "FileName=\"notes3.txt\"\n",
+    "with open(FileName,'r') as file:\n",
+    "    content=file.read()\n",
+    "    print('The content is:')\n",
+    "    print(content)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The content is:\n",
+      " AIESEC’s core-work is very relevant in the Middle East to promote cross cultural  understanding as a pathway to peace.\n"
+     ]
+    }
+   ],
+   "source": [
+    "FileName=\"notes2.txt\"\n",
+    "with open(FileName,'r') as file:\n",
+    "    content=file.read()\n",
+    "    print('The content is:')\n",
+    "    print(content)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The content is:\n",
+      "Accountability Communication Organisation \n"
+     ]
+    }
+   ],
+   "source": [
+    "FileName=\"notes3.txt\"\n",
+    "with open(FileName,'r') as file:\n",
+    "    content=file.read()\n",
+    "    print('The content is:')\n",
+    "    print(content)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#write user input to a text file\n",
+    "file_name=\"test.txt\"\n",
+    "user_input=input(\"Write your notes:\")\n",
+    "with open(file_name, \"w\") as file:\n",
+    "    file.write(user_input)\n",
+    "    print('Succefully save to',file_name)\n",
+    "    \n",
+    "#read and display user \n",
+    "file_name=\"notes3.txt\"\n",
+    "with open(file_name,'r') as file:\n",
+    "    content=file.read()\n",
+    "    print('The content of the file saved is')\n",
+    "    print(content)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The consolidated file is:\n",
+      "AIESEC is a  platform to face fears in order to eradicate prejudices and discrimination. AIESEC’s core-work is very relevant in the Middle East to promote cross cultural  understanding as a pathway to peace.Accountability Communication Organisation \n"
+     ]
+    }
+   ],
+   "source": [
+    "#write data from three differents files\n",
+    "inputFiles=[\"notes1.txt\",\"notes2.txt\",\"notes3.txt\"]\n",
+    "outputFile=\"consolidated.txt\"\n",
+    "with open(outputFile,'w') as file:\n",
+    "    #loop through each file and write too file\n",
+    "    for content in inputFiles:\n",
+    "        with open(content,'r') as files:\n",
+    "            textContent=files.read()\n",
+    "        file.write(textContent)\n",
+    "#read and display the output file\n",
+    "with open(outputFile, 'r') as file:\n",
+    "  print(\"The consolidated file is:\")  \n",
+    "  print(file.read())\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}