diff --git a/convert_voc_to_txt.ipynb b/convert_voc_to_txt.ipynb
new file mode 100644
index 00000000..9a9a10ac
--- /dev/null
+++ b/convert_voc_to_txt.ipynb
@@ -0,0 +1,146 @@
+{
+  "nbformat": 4,
+  "nbformat_minor": 0,
+  "metadata": {
+    "kernelspec": {
+      "display_name": "Python 3",
+      "language": "python",
+      "name": "python3"
+    },
+    "language_info": {
+      "codemirror_mode": {
+        "name": "ipython",
+        "version": 3
+      },
+      "file_extension": ".py",
+      "mimetype": "text/x-python",
+      "name": "python",
+      "nbconvert_exporter": "python",
+      "pygments_lexer": "ipython3",
+      "version": "3.6.6"
+    },
+    "colab": {
+      "name": "convert_voc_to_txt.ipynb",
+      "provenance": [],
+      "collapsed_sections": [],
+      "include_colab_link": true
+    }
+  },
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "view-in-github",
+        "colab_type": "text"
+      },
+      "source": [
+        "<a href=\"https://colab.research.google.com/github/tonebeta/BuildingMachineLearningSystemsWithPython/blob/master/convert_voc_to_txt.ipynb/" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg/" alt=\"Open In Colab\"/></a>"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "tviGOxXhz6nP"
+      },
+      "source": [
+        "# generate txt from xml"
+      ],
+      "execution_count": null,
+      "outputs": []
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "kEEDpFfK_HId",
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "outputId": "3befd898-e40b-4faf-f5d1-da64cd1a71d1"
+      },
+      "source": [
+        "from google.colab import drive\n",
+        "drive.mount('/content/drive')"
+      ],
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "text": [
+            "Mounted at /content/drive\n"
+          ],
+          "name": "stdout"
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "nUf9w9CZ_a0D"
+      },
+      "source": [
+        "FOLDER_PATH = '/content/drive/MyDrive/class/緯育醫學影像/Day5/keras-yolo3'"
+      ],
+      "execution_count": null,
+      "outputs": []
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "VeJo9ZEwz6nU"
+      },
+      "source": [
+        "import xml.etree.ElementTree as ET\n",
+        "import os\n",
+        "from os import getcwd\n",
+        "from glob import glob\n",
+        "\n",
+        "classes = ['WBC', 'Platelets', 'RBC']\n",
+        "\n",
+        "list_file = open(os.path.join('drive/My Drive', 'anno.txt'), 'w') # target .txt file\n",
+        "for path in sorted(glob(os.path.join(FOLDER_PATH, 'dataset/train_anno/*.xml'))):\n",
+        "    file_id = ''.join(path.split('/')[-1].split('.')[:-1])\n",
+        "    print(file_id)\n",
+        "    in_file = open(path)\n",
+        "    tree=ET.parse(in_file)\n",
+        "    root = tree.getroot()\n",
+        "    \n",
+        "    list_file.write(f'dataset/train_img/{file_id}.jpg')\n",
+        "    for obj in root.iter('object'):\n",
+        "        cls = obj.find('name').text\n",
+        "        cls_id = classes.index(cls)\n",
+        "        xmlbox = obj.find('bndbox')\n",
+        "        b = (int(xmlbox.find('xmin').text), int(xmlbox.find('ymin').text), int(xmlbox.find('xmax').text), int(xmlbox.find('ymax').text))\n",
+        "        list_file.write(\" \" + \",\".join([str(a) for a in b]) + ',' + str(cls_id))\n",
+        "    list_file.write('\\n')\n",
+        "list_file.close()\n",
+        "    \n",
+        "    "
+      ],
+      "execution_count": null,
+      "outputs": []
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "xYCAzMwTz6nX"
+      },
+      "source": [
+        "# .xml file count\n",
+        "len(glob(os.path.join(FOLDER_PATH, 'dataset/train_anno/*.xml')))"
+      ],
+      "execution_count": null,
+      "outputs": []
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "0mfPpZ6Bz6na"
+      },
+      "source": [
+        ""
+      ],
+      "execution_count": null,
+      "outputs": []
+    }
+  ]
+}
\ No newline at end of file