Hey guess waht crazy thing happened so ya i downloaded 7zip and then the file apeared as a zipped so i extracted andit worked so ya
7zip or Peazip are best free unzippers. Anything else is sh1t.
Bro, win.rar is good too, it can unzip, but it is not free though, only the trial version taht is 40 days.
Winrar keeps working after 40 days though. It's more like nagware. Keeps working.