diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
new file mode 100644
index 0000000..046dd20
--- /dev/null
+++ b/.github/workflows/pytest.yml
@@ -0,0 +1,37 @@
+name: Python Tests
+
+# Trigger the workflow on push or pull request
+on: 
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-version: [3.8, 3.9, 3.10, 3.11]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install pytest
+          python -m pip install
+
+      - name: Run tests
+        run: |
+          python -m pytest tests/
\ No newline at end of file
diff --git a/app/main.py b/app/main.py
index d9f23e2..4d69592 100644
--- a/app/main.py
+++ b/app/main.py
@@ -201,6 +201,7 @@ def open(self, file_paths=None):
          - dataframes (Excel)
          - saved work of SPECTROview (.maps, .spectra, .graphs)
         """
+        
         if file_paths is None:
             # Initialize the last used directory from QSettings
             last_dir = self.settings.value("last_directory", "/")
diff --git a/app/maps.py b/app/maps.py
index 9a16efd..4e7e588 100644
--- a/app/maps.py
+++ b/app/maps.py
@@ -217,6 +217,7 @@ def process_old_format(self, map_df, map_name):
 
     def process_new_format(self, map_df, map_name):
         """Process new format wafer dataframe."""
+        print('The support of new data format of SEMILAB is deactivated in this SPECTROview version')
         return
         for i in range(0, len(map_df), 2):
             coord_row = map_df.iloc[i]
diff --git a/data_test/examples/ex_reading_all_suported_data b/data_test/examples/ex_reading_all_suported_data
new file mode 100644
index 0000000..5fed4f9
--- /dev/null
+++ b/data_test/examples/ex_reading_all_suported_data
@@ -0,0 +1,43 @@
+import sys
+import os
+from pathlib import Path
+
+from PySide6.QtWidgets import QApplication
+from PySide6.QtGui import QIcon
+
+from app.main import Main
+
+# DATA = Path(__file__).parent / "data"
+
+def ex_reading_all_supported_data(file_paths=None):
+    """Example of reading different supported .CSV and .txt data formats"""
+    app = QApplication()
+    window = Main()
+    app.setStyle("Fusion")
+    
+    if file_paths is not None:
+        window.open(file_paths=file_paths)
+    window.ui.show()
+    sys.exit(app.exec())
+
+
+if __name__ == "__main__":
+    # DIRNAME = os.path.dirname(__file__)
+    # DATA = os.path.join(DIRNAME, "data_test", "example", "spectroscopic_data")
+    # file_path_1 = os.path.join(DATA, 'spectrum1_1ML.txt')
+    # file_path_2 = os.path.join(DATA, 'spectrum4_3ML.txt')
+    # file_path_3 = os.path.join(DATA, '2Dmap_MoS2.txt')
+    # file_paths = ['file_path_1', 'file_path_2', 'file_path_3']
+    # ex_reading_all_supported_data()
+    
+    DATA_DIR = Path(__file__).parent / "spectroscopic_data"
+    # DATA_DIR = DIRNAME / "data_test" / "example" / "spectroscopic_data"
+    file_paths = [str(file) for file in DATA_DIR.glob("*.txt")]
+    if file_paths:
+        ex_reading_all_supported_data(file_paths=file_paths)
+    else:
+        print(f"No supported data files found in {DATA_DIR}")
+    
+    
+    
+   
\ No newline at end of file
diff --git a/data_test/Spectra data/2Dmap_MoS2.txt b/data_test/spectroscopic_data/2Dmap_MoS2.txt
similarity index 100%
rename from data_test/Spectra data/2Dmap_MoS2.txt
rename to data_test/spectroscopic_data/2Dmap_MoS2.txt
diff --git a/data_test/Spectra data/2Dmap_NCTs.txt b/data_test/spectroscopic_data/2Dmap_NCTs.txt
similarity index 100%
rename from data_test/Spectra data/2Dmap_NCTs.txt
rename to data_test/spectroscopic_data/2Dmap_NCTs.txt
diff --git a/data_test/Spectra data/F550DB00 b/data_test/spectroscopic_data/F550DB00
similarity index 100%
rename from data_test/Spectra data/F550DB00
rename to data_test/spectroscopic_data/F550DB00
diff --git a/data_test/Spectra data/Time-resolved_PL_map_MoS2.txt b/data_test/spectroscopic_data/Time-resolved_PL_map_MoS2.txt
similarity index 100%
rename from data_test/Spectra data/Time-resolved_PL_map_MoS2.txt
rename to data_test/spectroscopic_data/Time-resolved_PL_map_MoS2.txt
diff --git a/data_test/Spectra data/data_inline.xlsx b/data_test/spectroscopic_data/data_inline.xlsx
similarity index 100%
rename from data_test/Spectra data/data_inline.xlsx
rename to data_test/spectroscopic_data/data_inline.xlsx
diff --git a/data_test/Spectra data/spectrum1_1ML.txt b/data_test/spectroscopic_data/spectrum1_1ML.txt
similarity index 100%
rename from data_test/Spectra data/spectrum1_1ML.txt
rename to data_test/spectroscopic_data/spectrum1_1ML.txt
diff --git a/data_test/Spectra data/spectrum2_1ML.txt b/data_test/spectroscopic_data/spectrum2_1ML.txt
similarity index 100%
rename from data_test/Spectra data/spectrum2_1ML.txt
rename to data_test/spectroscopic_data/spectrum2_1ML.txt
diff --git a/data_test/Spectra data/spectrum3_3ML.txt b/data_test/spectroscopic_data/spectrum3_3ML.txt
similarity index 100%
rename from data_test/Spectra data/spectrum3_3ML.txt
rename to data_test/spectroscopic_data/spectrum3_3ML.txt
diff --git a/data_test/Spectra data/spectrum4_3ML.txt b/data_test/spectroscopic_data/spectrum4_3ML.txt
similarity index 100%
rename from data_test/Spectra data/spectrum4_3ML.txt
rename to data_test/spectroscopic_data/spectrum4_3ML.txt
diff --git a/data_test/Spectra data/spectrum5_12ML.txt b/data_test/spectroscopic_data/spectrum5_12ML.txt
similarity index 100%
rename from data_test/Spectra data/spectrum5_12ML.txt
rename to data_test/spectroscopic_data/spectrum5_12ML.txt
diff --git a/data_test/Spectra data/spectrum6_12ML.txt b/data_test/spectroscopic_data/spectrum6_12ML.txt
similarity index 100%
rename from data_test/Spectra data/spectrum6_12ML.txt
rename to data_test/spectroscopic_data/spectrum6_12ML.txt
diff --git a/data_test/Spectra data/wafer10_newformat.csv b/data_test/spectroscopic_data/wafer10_newformat.csv
similarity index 100%
rename from data_test/Spectra data/wafer10_newformat.csv
rename to data_test/spectroscopic_data/wafer10_newformat.csv
diff --git a/data_test/Spectra data/wafer4_process1.csv b/data_test/spectroscopic_data/wafer4_process1.csv
similarity index 100%
rename from data_test/Spectra data/wafer4_process1.csv
rename to data_test/spectroscopic_data/wafer4_process1.csv
diff --git a/data_test/Spectra data/wafer5_process2.csv b/data_test/spectroscopic_data/wafer5_process2.csv
similarity index 100%
rename from data_test/Spectra data/wafer5_process2.csv
rename to data_test/spectroscopic_data/wafer5_process2.csv
diff --git a/data_test/Spectra data/wafer6_process3.csv b/data_test/spectroscopic_data/wafer6_process3.csv
similarity index 100%
rename from data_test/Spectra data/wafer6_process3.csv
rename to data_test/spectroscopic_data/wafer6_process3.csv
diff --git a/data_test/Spectra data/wafer7_process2.csv b/data_test/spectroscopic_data/wafer7_process2.csv
similarity index 100%
rename from data_test/Spectra data/wafer7_process2.csv
rename to data_test/spectroscopic_data/wafer7_process2.csv
diff --git a/data_test/Spectra data/wafer8_process3.csv b/data_test/spectroscopic_data/wafer8_process3.csv
similarity index 100%
rename from data_test/Spectra data/wafer8_process3.csv
rename to data_test/spectroscopic_data/wafer8_process3.csv
diff --git a/tests/test_1.py b/tests/test_1.py
new file mode 100644
index 0000000..77d41f2
--- /dev/null
+++ b/tests/test_1.py
@@ -0,0 +1,9 @@
+import pytest
+
+# from data_test.examples.ex_reading_all_suported_data import ex_reading_all_suported_data
+
+
+def test_1():
+    print('test pytest')
+    
+    
\ No newline at end of file