diff --git a/src/g5505_utils.py b/src/g5505_utils.py
index 103f529..76f1513 100644
--- a/src/g5505_utils.py
+++ b/src/g5505_utils.py
@@ -1,6 +1,6 @@
 import pandas as pd
 import os
-
+import shutil
 
 def is_callable_list(x : list):
     return all([callable(item) for item in x])
@@ -49,3 +49,19 @@ def split_sample_col_into_sample_and_data_quality_cols(input_data: pd.DataFrame)
     input_data['data_quality'] = sample_quality
 
     return input_data
+
+def make_file_copy(source_file_path):
+
+    pathtail, filename = os.path.split(source_file_path)
+    backup_filename = 'backup_'+ filename
+    # Path                     
+    ROOT_DIR = os.path.abspath(os.curdir)
+
+    tmp_dirpath = os.path.join(ROOT_DIR,'tmp_files')
+    if not os.path.exists(tmp_dirpath):
+        os.mkdir(tmp_dirpath)
+
+    tmp_file_path = os.path.join(tmp_dirpath,backup_filename)
+    shutil.copy(source_file_path, tmp_file_path)
+
+    return tmp_file_path
\ No newline at end of file