diff --git a/lightrag/utils.py b/lightrag/utils.py
index 4a3378db..2e75b9b9 100644
--- a/lightrag/utils.py
+++ b/lightrag/utils.py
@@ -752,71 +752,6 @@ def truncate_list_by_token_size(
     return list_data
 
 
-def save_data_to_file(data, file_name):
-    with open(file_name, "w", encoding="utf-8") as f:
-        json.dump(data, f, ensure_ascii=False, indent=4)
-
-
-def xml_to_json(xml_file):
-    try:
-        tree = ET.parse(xml_file)
-        root = tree.getroot()
-
-        # Print the root element's tag and attributes to confirm the file has been correctly loaded
-        print(f"Root element: {root.tag}")
-        print(f"Root attributes: {root.attrib}")
-
-        data = {"nodes": [], "edges": []}
-
-        # Use namespace
-        namespace = {"": "http://graphml.graphdrawing.org/xmlns"}
-
-        for node in root.findall(".//node", namespace):
-            node_data = {
-                "id": node.get("id").strip('"'),
-                "entity_type": node.find("./data[@key='d0']", namespace).text.strip('"')
-                if node.find("./data[@key='d0']", namespace) is not None
-                else "",
-                "description": node.find("./data[@key='d1']", namespace).text
-                if node.find("./data[@key='d1']", namespace) is not None
-                else "",
-                "source_id": node.find("./data[@key='d2']", namespace).text
-                if node.find("./data[@key='d2']", namespace) is not None
-                else "",
-            }
-            data["nodes"].append(node_data)
-
-        for edge in root.findall(".//edge", namespace):
-            edge_data = {
-                "source": edge.get("source").strip('"'),
-                "target": edge.get("target").strip('"'),
-                "weight": float(edge.find("./data[@key='d3']", namespace).text)
-                if edge.find("./data[@key='d3']", namespace) is not None
-                else 0.0,
-                "description": edge.find("./data[@key='d4']", namespace).text
-                if edge.find("./data[@key='d4']", namespace) is not None
-                else "",
-                "keywords": edge.find("./data[@key='d5']", namespace).text
-                if edge.find("./data[@key='d5']", namespace) is not None
-                else "",
-                "source_id": edge.find("./data[@key='d6']", namespace).text
-                if edge.find("./data[@key='d6']", namespace) is not None
-                else "",
-            }
-            data["edges"].append(edge_data)
-
-        # Print the number of nodes and edges found
-        print(f"Found {len(data['nodes'])} nodes and {len(data['edges'])} edges")
-
-        return data
-    except ET.ParseError as e:
-        print(f"Error parsing XML file: {e}")
-        return None
-    except Exception as e:
-        print(f"An error occurred: {e}")
-        return None
-
-
 def process_combine_contexts(*context_lists):
     """
     Combine multiple context lists and remove duplicate content