Lost large amount of bitcoin

Hey all, I have a weird scenario and I was wondering if anyone might have some insight. A friend recently told me that he had a pretty decent amount of bitcoin that he bought back in the early 2010s. The catch is that it is lost on one of two hard drives or a laptop. He gave me all the hardware and wants me to help him find it. Since it was so long ago he doesn’t remember if it was the 12 word seed phrase or the private key he lost. It would likely be the 12 word seed phrase correct? Also, he said he may have “hidden” it in an old Napster music file or something of the sort so it isn’t obvious that it is a text file with the phrase/key written on it. After taking a look at the hard drives and laptop there are so many gbs of files and rubbish on here I’m wondering if there is a quick way to search through all of it. Any thoughts? I’d prefer not to go through all of the files/ downloads one by one if possible and I figured someone on here may have a good idea. Thanks!