etspy.base.CommonStack.save_raw(filename: str | Path | None = None) → Path[source] Save Stack data as a .raw/.rpl file pair. Parameters:¶ filename: str | Path | None = None¶Name of file to receive data. If not specified, the metadata will be used. Data dimensions and data type will be appended. Returns:¶ filename – The path to the file that was saved Return type:¶ pathlib.Path