diff --git a/smog_chamber_group_reader.py b/smog_chamber_group_reader.py
index 403bfba..2d33cd7 100644
--- a/smog_chamber_group_reader.py
+++ b/smog_chamber_group_reader.py
@@ -1,7 +1,7 @@
 
 import pandas as pd
 import matplotlib.pyplot as plt
-
+import os
 
 def read_smog_chamber_txt_files_as_dict(filename : str ,instrument_folder : str):
 
@@ -47,6 +47,12 @@ def read_smog_chamber_txt_files_as_dict(filename : str ,instrument_folder : str)
     df_numerical_attrs = df.select_dtypes(include ='number')
     df_categorical_attrs = df.select_dtypes(exclude='number')
 
+    if instrument_folder == 'smps':
+        df_categorical_attrs['1_Timestamp'] = [ df_categorical_attrs.loc[i,'1_Date']+' '+df_categorical_attrs.loc[i,'2_Start Time'] for i in df.index]
+        df_categorical_attrs = df_categorical_attrs.drop(columns=['1_Date','2_Start Time'])
+    elif instrument_folder == 'gas':
+        df_categorical_attrs = df_categorical_attrs.rename(columns={'0_Date_Time' : '0_Timestamp'})
+
     data_column_names = [item.encode("utf-8") for item in df_numerical_attrs.columns]
     output_dict = { 'header_dict':header_dict,
                     'data': df_numerical_attrs.to_numpy(),
@@ -65,13 +71,19 @@ def main():
 
 
     #filename = 'M:\\gas\\20220705_000004_MSC_gases.txt' corrupted file
-    filename = 'M:\\gas\\20220726_101617_MSC_gases.txt'
-    instrument_folder = 'gas'
+    #filename = 'M:\\gas\\20220726_101617_MSC_gases.txt'
+    root_dir = '\\\\fs03\\Iron_Sulphate'
 
-    filename = 'M:\\smps\\20220726\\20220726_num.TXT'
     instrument_folder = 'smps'
+    filename_path = os.path.join(root_dir,'smps\\20220726\\20220726_num.TXT')
 
-    result = read_smog_chamber_txt_files_as_dict(filename,instrument_folder)
+
+    instrument_folder = 'gas'
+    filename_path = os.path.join(root_dir,'gas\\20220726_101617_MSC_gases.txt')
+    
+
+
+    result = read_smog_chamber_txt_files_as_dict(filename_path,instrument_folder)
 
     print(':)')