diff --git a/requirements.txt b/requirements.txt
index b361711..0e810ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+pytest
 openpyxl~=3.1.5
 pyside6~=6.9.0
 python-docx~=1.1.2
diff --git a/toolbox/config/achievement.default.excel.json b/toolbox/config/achievement.default.excel.json
new file mode 100644
index 0000000..9578219
--- /dev/null
+++ b/toolbox/config/achievement.default.excel.json
@@ -0,0 +1,109 @@
+{
+  "name": "achievement",
+  "version": "9.0",
+  "compatibleVersion": [
+    "9.0"
+  ],
+  "config": [
+    {
+      "name": "version",
+      "position": "H1",
+      "type": "single"
+    },
+    {
+      "name": "class_full_name",
+      "position": "D10",
+      "type": "single"
+    },
+    {
+      "name": "course_name",
+      "position": "D5",
+      "type": "single"
+    },
+    {
+      "name": "teacher_name",
+      "position": "D7",
+      "type": "single"
+    },
+    {
+      "name": "master_name",
+      "position": "D8",
+      "type": "single"
+    },
+    {
+      "name": "class_single_name",
+      "position": "K",
+      "type": "range",
+      "start": 2,
+      "end": 5
+    },
+    {
+      "name": "class_single_number",
+      "position": "M",
+      "type": "range",
+      "start": 2,
+      "end": 5
+    },
+    {
+      "name": "kpi_number",
+      "position": "H8",
+      "type": "single"
+    },
+    {
+      "name": "hml",
+      "position": "H",
+      "type": "range",
+      "start": 22,
+      "end": null
+    },
+    {
+      "name": "hml_goal",
+      "position": "I",
+      "type": "range",
+      "start": 22,
+      "end": null
+    },
+    {
+      "name": "hml_indicate",
+      "position": "Q",
+      "type": "range",
+      "start": 22,
+      "end": null
+    },
+    {
+    }
+  ]
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
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+
+
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+
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+
diff --git a/toolbox/config/override.excel.json b/toolbox/config/override.excel.json
new file mode 100644
index 0000000..e69de29
diff --git a/toolbox/models/config.py b/toolbox/models/config.py
new file mode 100644
index 0000000..f65f52b
--- /dev/null
+++ b/toolbox/models/config.py
@@ -0,0 +1,112 @@
+#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
+#  #
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  #
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  #
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import json
+from abc import ABC, abstractmethod
+from os import PathLike
+from typing import Optional
+
+
+class BaseExcelConfig(ABC):
+    @property
+    @abstractmethod
+    def name(self) -> str:
+        ...
+
+    @property
+    @abstractmethod
+    def position(self) -> str:
+        ...
+
+
+class RangeExcelConfigMixin(ABC):
+    @property
+    @abstractmethod
+    def start(self) -> int:
+        ...
+
+    @property
+    @abstractmethod
+    def end(self) -> Optional[int]:
+        ...
+
+    @property
+    @abstractmethod
+    def fposition(self) -> str:
+        ...
+
+
+class SingleExcelConfigItem(BaseExcelConfig):
+
+    def __init__(self, name: str, position: str):
+        self._name = name
+        self._position = position
+
+    @property
+    def name(self) -> str:
+        return self._name
+
+    @property
+    def position(self) -> str:
+        return self._position
+
+
+class RangeExcelConfigItem(SingleExcelConfigItem, RangeExcelConfigMixin):
+
+    def __init__(self, name: str, position: str, start: int, end: Optional[int] = None):
+        super().__init__(name, position)
+        self._start = start
+        self._end = end
+
+    @property
+    def start(self) -> int:
+        return self._start
+
+    @property
+    def end(self) -> Optional[int]:
+        return self._end
+
+    @property
+    def fposition(self) -> str:
+        return self.position + '{}'
+
+
+class AESConfig:
+    _config_list: list[SingleExcelConfigItem | RangeExcelConfigItem]
+
+    def __init__(self, file_path: str | PathLike):
+        self._file_path = file_path
+        self._config_list = []
+        self._init_config()
+
+    def __getitem__(self, item: str):
+        return self.get_config(item)
+
+    def _init_config(self):
+        with open(self._file_path, 'r', encoding='utf-8') as f:
+            config = json.load(f)
+            f.close()
+
+        for item in config['config']:
+            itype = item.pop('type', None)
+            if itype == 'range':
+                self._config_list.append(RangeExcelConfigItem(**item))
+            elif itype == 'single':
+                self._config_list.append(SingleExcelConfigItem(**item))
+
+    def get_config(self, name: str) -> Optional[RangeExcelConfigItem | SingleExcelConfigItem]:
+        for config in self._config_list:
+            if config.name == name:
+                return config
+        return None
diff --git a/toolbox/models/data_model.py b/toolbox/models/data_model.py
new file mode 100644
index 0000000..b014ecf
--- /dev/null
+++ b/toolbox/models/data_model.py
@@ -0,0 +1,32 @@
+#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
+#  #
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  #
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  #
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from dataclasses import dataclass
+
+
+@dataclass
+class ClassInfo:
+    full_name = ""
+
+    class_name: str
+    class_number: int
+
+
+@dataclass
+class CourseInfo:
+    course_name: str
+    # 任课教师
+    course_teacher_name: str
+    # 课程负责人
+    course_master_name: str
diff --git a/toolbox/services/excel_service.py b/toolbox/services/excel_service.py
new file mode 100644
index 0000000..314671e
--- /dev/null
+++ b/toolbox/services/excel_service.py
@@ -0,0 +1,119 @@
+#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
+#  #
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  #
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  #
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import json
+from abc import ABC, abstractmethod
+from os import PathLike
+from typing import Optional
+
+import openpyxl
+from openpyxl.workbook import Workbook
+from openpyxl.worksheet.worksheet import Worksheet
+
+from toolbox.models.data_model import ClassInfo
+from toolbox.models.config import AESConfig
+
+
+class BaseExcelService(ABC):
+    _file_path: str | PathLike
+    _workbook: Optional[Workbook]
+    _sheet: None
+
+    @abstractmethod
+    def open(self, *args, **kwargs) -> 'BaseExcelService':
+        ...
+
+    @abstractmethod
+    def save(self) -> 'BaseExcelService':
+        ...
+
+    @abstractmethod
+    def close(self) -> None:
+        ...
+
+    @abstractmethod
+    def active_sheet(self, sheet_name: str) -> 'BaseExcelService':
+        ...
+
+    @property
+    @abstractmethod
+    def cur_active_sheet(self) -> Worksheet:
+        ...
+
+
+class ExcelService(BaseExcelService):
+    def __init__(self, file_path: str | PathLike):
+        self._file_path = file_path
+        self._workbook = None
+        self._sheet = None
+
+    def open(self, *args, **kwargs):
+        self._workbook = openpyxl.load_workbook(self._file_path, *args, **kwargs)
+        return self
+
+    def save(self):
+        self._workbook.save(self._file_path)
+        return self
+
+    def close(self):
+        self._workbook.close()
+
+    def active_sheet(self, sheet_name: str):
+        self._sheet = self._workbook[sheet_name]
+        return self
+
+    @property
+    def cur_active_sheet(self):
+        return self._sheet
+
+    def load_value(self, cell: str):
+        if self._sheet is None:
+            raise ValueError("No active sheet. Please set an active sheet first.")
+        return self._sheet[cell].value
+
+
+class AchievementExcelService(ExcelService):
+    version = ''
+    config = {}
+
+    def __init__(self, file_path: str | PathLike):
+        super().__init__(file_path)
+        self.open(read_only=True, data_only=True)
+
+    def load_config(self, config_path: str | PathLike):
+        self.config = AESConfig(config_path)
+
+    def read_class_info(self) -> list[ClassInfo]:
+        lst = []
+        self.active_sheet('初始录入')
+        full_name = self.load_value(self.config['class_full_name'].position)
+
+        for i in range(self.config['class_single_name'].start, self.config['class_single_name'].end):
+            name = self.load_value(self.config['class_single_name'].fposition.format(i))
+            number = self.load_value(self.config['class_single_number'].fposition.format(i))
+
+            if name is None or number is None:
+                break
+
+            ci = ClassInfo(name, number)
+            ci.full_name = full_name
+            lst.append(ci)
+
+        if len(lst) == 0:
+            raise ValueError("No class information found in the Excel file.")
+
+        return lst
+
+    def read_course_info(self):
+        ...
diff --git a/toolbox/tests/__init__.py b/toolbox/tests/__init__.py
new file mode 100644
index 0000000..7ec691b
--- /dev/null
+++ b/toolbox/tests/__init__.py
@@ -0,0 +1,19 @@
+#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
+#  #
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  #
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  #
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import os
+from pathlib import Path
+
+PACKAGE_DIR = os.path.dirname(os.path.abspath(__file__))
+TEST_FILE_PATH = Path(os.path.join(PACKAGE_DIR, 'files'))
diff --git a/toolbox/tests/test_config_model.py b/toolbox/tests/test_config_model.py
new file mode 100644
index 0000000..68f7d7f
--- /dev/null
+++ b/toolbox/tests/test_config_model.py
@@ -0,0 +1,41 @@
+#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
+#  #
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  #
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  #
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from toolbox.models.config import AESConfig, SingleExcelConfigItem, RangeExcelConfigItem
+from toolbox.tests import TEST_FILE_PATH
+
+
+def test_config_model():
+    aesc = AESConfig(TEST_FILE_PATH / 'test_config_model_01.json')
+
+    a = aesc.get_config('A')
+    assert isinstance(a, SingleExcelConfigItem)
+    assert a.position == 'H1'
+
+    b = aesc.get_config('B')
+    assert isinstance(b, SingleExcelConfigItem)
+    assert b.position == 'D10'
+
+    c = aesc.get_config('C')
+    assert isinstance(c, RangeExcelConfigItem)
+    assert c.position == 'K'
+    assert c.fposition.format(1) == 'K1'
+    assert c.start == 2
+    assert c.end == 5
+
+    d = aesc.get_config('D')
+    assert isinstance(d, RangeExcelConfigItem)
+    assert d.position == 'Q'
+    assert d.fposition.format(d.start) == 'Q22'
+    assert d.end is None
diff --git a/toolbox/tests/test_excel_services.py b/toolbox/tests/test_excel_services.py
new file mode 100644
index 0000000..5a6993d
--- /dev/null
+++ b/toolbox/tests/test_excel_services.py
@@ -0,0 +1,79 @@
+#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
+#  #
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  #
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  #
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import shutil
+from pathlib import Path
+
+import pytest
+from openpyxl.workbook import Workbook
+
+from toolbox.services.excel_service import ExcelService, AchievementExcelService
+from toolbox.tests import TEST_FILE_PATH
+
+SAVE_TEMP_FILE = False
+
+
+class TestExcelService:
+    es = ExcelService(TEST_FILE_PATH / 'test_excel_services_01.xlsx')
+    es.open(data_only=True)
+
+    def test_open(self):
+        assert isinstance(self.es._workbook, Workbook)
+        assert self.es._sheet is None
+
+    def test_open_failed(self):
+        with pytest.raises(FileNotFoundError):
+            ExcelService(TEST_FILE_PATH / 'non_existent_file.xlsx').open()
+
+    def test_active_sheet(self):
+        self.es.active_sheet('Sheet1')
+        assert self.es._sheet.title == 'Sheet1'
+        self.es.active_sheet('Sheet2')
+        assert self.es._sheet.title == 'Sheet2'
+
+    def test_cur_active_sheet(self):
+        self.es.active_sheet('Sheet1')
+        assert self.es.cur_active_sheet.title == 'Sheet1'
+        self.es.active_sheet('Sheet2')
+        assert self.es.cur_active_sheet.title == 'Sheet2'
+
+    def test_save_and_close(self):
+        temp_excel_file = TEST_FILE_PATH / 'test_excel_services_01_temp.xlsx'
+        shutil.copy(self.es._file_path, temp_excel_file)
+
+        self.es.active_sheet('Sheet1').cur_active_sheet['A1'] = 'Modified'
+        self.es.save().close()
+
+        es2 = ExcelService(temp_excel_file).open().active_sheet('Sheet1')
+        assert es2.cur_active_sheet['A1'].value == 'Modified'
+        es2.close()
+
+        if not SAVE_TEMP_FILE:
+            Path(TEST_FILE_PATH / 'test_excel_services_01_temp.xlsx').unlink()
+
+
+class TestAchievementExcelService:
+    aes = AchievementExcelService(TEST_FILE_PATH / 'test_achievement_excel_service_01.xlsm')
+    aes.load_config(TEST_FILE_PATH / 'test_achievement.default.excel_01.json')
+
+    def test_read_class_info(self):
+        cis = self.aes.read_class_info()
+        assert len(cis) == 2
+        assert cis[0].full_name == '22工程管理（1）（2）'
+        assert cis[1].full_name == '22工程管理（1）（2）'
+
+        assert cis[0].class_name == '22工程管理（1）'
+        assert cis[0].class_number == 34
+        assert cis[1].class_name == '22工程管理（2）'
+        assert cis[1].class_number == 36