Update app.py

app.py

@@ -379,12 +379,24 @@ def _load_excel_as_text(file_name: str) -> str:
     try:
         xl = pd.ExcelFile(file_path)
         sheets = xl.sheet_names
+
+        xl = xl.applymap(lambda x: f"{x:.2f}" if isinstance(x, float) else x)
+
+        # Esporta in formato CSV con separatore "pipe" per chiarezza (| colonna |)
+        csv_buffer = StringIO()
+        xl.to_csv(csv_buffer, index=False)
+        xl_string = csv_buffer.getvalue()
+        csv_buffer.close()
+        return xl_string
+        
+        '''
         all_text = ""
         for sheet in sheets:
             df = xl.parse(sheet)
             all_text += f"\nSheet: {sheet}\n"
             all_text += df.to_string(index=False)
         return all_text
+        '''
     except Exception as e:
         print(f"[ERRORE] Impossibile leggere il file Excel: {e}")
         return "ERROR: Could not read Excel file."