TYP: misc typing cleanups for #32911
pandas\io\excel\_odswriter.py:39:5: error: Argument 5 of "write_cells" is incompatible with supertype "ExcelWriter"; supertype defines the argument type as "Optional[Tuple[int, int]]"  [override]
pandas\io\excel\_odswriter.py:62:35: error: Argument 1 to "_validate_freeze_panes" has incompatible type "Optional[List[Any]]"; expected "Optional[Tuple[int, int]]"  [arg-type]
LGTM Thanks @simonjayhawkins 