The simplest method would be to install the hard disk into a new computer and copy the data files (or the entire disk drive) onto the new computer's disk(s). You can then reinstall the hard disk in the old machine and carry on using it until the new machine is fully-commissioned. Of course, the new machine must be able to accept IDE drives. This may mean buying an IDE card, since modern motherboards are SATA only. If the old machine has a disk drive with older technology than IDE, you may not be able to go down this route.
The second problem that you will probably encounter is that the old (16-bit) software will not work on a modern version of windows. You may well need to find software to convert the old data into a format that can be used by current software. One solution to this might be to run Windows 3.1 on a virtual machine.
'Sir, please,' she said ... 'Will you not share your wisdom with us?'
'I have no wisdom,' he told her.
'Your experiences, then?'
'They have been trivial, uninteresting, and full of error.'
Iain M. Banks -- Feersum Endjinn
Edited by micksharpe (Sat 13-Jan-18 09:33:06)