diff --git a/deepdoc/parser/excel_parser.py b/deepdoc/parser/excel_parser.py
index 91bcad7a7..29bf4e2e6 100644
--- a/deepdoc/parser/excel_parser.py
+++ b/deepdoc/parser/excel_parser.py
@@ -124,7 +124,7 @@ class RAGFlowExcelParser:
                         if c.value is None:
                             tb += "<td></td>"
                         else:
-                            tb += f"<td>{c.value}</td>"
+                            tb += f"<td>{escape(_fmt(c.value))}</td>"
                     tb += "</tr>"
                 tb += "</table>\n"
                 tb_chunks.append(tb)