diff --git a/src/hdf5_lib.py b/src/hdf5_lib.py
index b3ff6eb..931169c 100644
--- a/src/hdf5_lib.py
+++ b/src/hdf5_lib.py
@@ -153,13 +153,6 @@ def is_nested_hierarchy(df) -> bool:
 
     return all([are_nested(df_tmp,'level_'+str(i)+'_groups','level_'+str(i+1)+'_groups') for i in range(len(df_tmp.columns)-1)])
 
-def get_attr_names(input_data):
-    
-    # TODO: extend this to file-system paths
-    if not isinstance(input_data,pd.DataFrame):
-        raise ValueError("input_data must be a pd.DataFrame")
-
-    return input_data.columns
 
 def get_parent_child_relationships(file: h5py.File):
 
@@ -206,19 +199,6 @@ def get_groups_at_a_level(file: h5py.File, level: str):
     #file.visititems()
     return groups
 
-def format_group_names(names: list):
-
-    formated_names = []
-    for name in names:
-        idx = name.rfind('/')
-        if len(name) > 1:
-            formated_names.append(name[idx+1::])
-        else:
-            formated_names.append(name)
-
-    return pd.DataFrame(formated_names,columns=['formated_names'],index=names) 
-
-
 
 def annotate_root_dir(filename,annotation_dict: dict):
     with h5py.File(filename,'r+') as file: