small change to conversion

src/conversion_scripts/convert_marc.py

@@ -37,5 +37,4 @@ def convertTrajectory(path, save_path, categories):
         category=categories[1], positions=ar[:, [3, 4]], orientations=ar[:, [5]]
     )
 
-    new.validate()
-    new.save(save_path)
+    new.save_as(save_path)