doc、docx、pdf、txt、log、dot、dotx、xls、xlsx、csv、xlt、xltx、ppt、pptx、pps、ppsx、pot、potx 5. assistance and Updates: very good help with common updates is important for efficiency and safety https://zoyawopd456956.aboutyoublog.com/31282052/an-unbiased-view-of-wps-office免費版