Update app.py

app.py

@@ -76,11 +76,15 @@ def convert_schedule(file_path, direction):
                 texters = days_map.get(day, [])
                 result.at[model, day] = ', '.join(texters) if texters else 'OFF'
 
-    # 5. Cleanup axis names
+        # 5. Cleanup axis names
     result.index.name = None
     result.columns.name = None
 
-        # 6. Save to Excel for download, specifying engine
+        # 6. Save to Excel for download, ensuring directory exists
+    os.makedirs('/mnt/data', exist_ok=True)
+    output_filename = f"converted_{uuid.uuid4().hex}.xlsx"
+    # Save under /mnt/data so HF Spaces can serve it
+    output_path = os.path.join('/mnt/data', output_filename)
     output_filename = f"converted_{uuid.uuid4().hex}.xlsx"
     # Save under /mnt/data so HF Spaces can serve it
     output_path = os.path.join('/mnt/data', output_filename)