I suppose you want to download the contents of a floppy drive to your computer. First of all insert the floppy disk in the CPU, then click on my computer and go to the icon of 3 1/2 floppy disk. When you click on that you will see the contents of the floppy. You simple have to copy and paste them all in a local drive. I believe you forget the drive that you have downloaded them into. So keep a track of that.
You don't need to download floppy disk software for your computer. It is a plug and play device. However, If you want to download some data from your floppy drive then you can simple go to A drive on your computer (which is a floppy drive) and copy the files and paste it in your computer. The files will remain in Floppy disk unless you delete them.