If you want to read data for these files, you need another application. As far as I know, in the android stock there is no way to read any of these files nativly.
If you can manage one application, the Kingston office, which I know personally, can open these types (pdf isffy) https://play.google.com/store/apps/details?id=cn.wps.moffice_eng&hl=en
In another way, I believe that if you had an external interpreter that could make a web page out of it. Maybe using drive.google.com will do this, but I don’t know how far the browser on your device can go with it.