https://www.rarlab.com/download.htm (click it and its gonna download)(also if there is a setup which I dont remember if there's one but if there is just set it up) after that just right click on the zipped floppymc file and unzip it and it should work
3 years ago(+1)
after you extract it go inside the folder then right click not minecraft dont sue me pls.exe then go to send to and click desktop(create shortcut)