Very creative game, most of the fun from this game, came from how unique the mechanic was! It felt really nice being able to use all of the useless files at the end of the game for the final puzzle to wrap things up. The mazes in the game were hard to look at, and the music got repetitive though. I hope you fix these up in the final game if you plan on continuing it. The random shave yourself poster was pretty funny. You did really well on the concept, and this was very much "outside the box."
Also I don't think it was intentional, but I found myself just reading the files to figure out what they were instead of going through the mazes, because it was so much quicker and easier. Maybe make that a mechanic? Otherwise you might want to change there contents to be less obvious.