Do you mean a floppy disk?
Years ago I had a Sony camera which used a floppy. The camera would format the disk.
I recall, though that the disk had to be read in a computer to get anything meaningful from it e.g. prints or transfers. This being the case, you need a computer with a floppy drive and, if it has that then you will be able to format from your computer.
Or have I misunderstood?