|It depends on whether or not it has been physically overwritten. When you delete something, the data is still on the hard drive, but a flag is set telling the OS that the space is available for writing if it wants it.|
When you overwrite a file, the OS might write it elsewhere on the disk, and just modify the index to point to the new address.
You can try software data recovery tools to see if it's still there. Otherwise, you'd have to have profesionals use hardware recovery tools to look at the latent magnetic traces. That can be very expensive.
Make sure you don't write anything at all on the floppy. Don't defragment, scandisk, etc. Those tools can/will write to your floppy.