Are these text-only files in your 98 computer that you are wanting to copy and that can fit on floppy disks?
Unless your XP computer also has a floppy drive(and many of them don't), you can buy an external floppy drive unit with a USB connection to connect to your XP computer, then you can transfer the files to it from the floppy disks.
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Practically all hardware and external devices on the market require 98SE or newer to work.
98SE provides full USB support. 98 and 95 OSR2 do not.
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