You can try using data recovery software. Good software can read data off a damaged partition and formatted drives.
I recommend R-Studio but it's not free. You can download a trial of it to see what it is able to recover, then you can buy a licence and enter it straight away to recover the data.
I guess it depends how important their files are. R-Studio costs $50.00 See link below.
Disk Recovery Software and Hard Drive Recovery tool for Windows
You can also try this free program but I have not used it so I don't know how good it is.
http://www.pcinspector.de/default.htm?Language=1



















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