Update app.py

app.py

@@ -351,10 +351,8 @@ def get_or_download_code(file_name: str) -> str:
         return f.read()
 
 
-def _load_excel_as_text(self, file_name: str) -> str:
-    import pandas as pd
-    import os
-
+def _load_excel_as_text(file_name: str) -> str:
+    
     file_path = os.path.join("data", file_name)
     try:
         xl = pd.ExcelFile(file_path)