List of Files
There are 32 files in total, however two of them have not only a front side but also a back side, so you only need to find the locations of 30 of them.
File 1: Email from Mia
As soon as you start the game, bring your inventory up and there you will find the first file.
File 2 and File 3: List of Names
Front and back. This file is near Mia's cell.
File 4: Home Improvement Store Reciept
After the cutscene, go to the left of the table and look at the posting wall.
File 5: Missing People
Head into the Living Room and search for the newspaper on the table.
File 6: Over 20 Missing
At the Main Hall near the clock, search for another newspaper.
File 7: Jack's Journal
Once inside at the Recreation Room, below the bull hanged on the wall, the next file is at sight.
File 8: Jack's Memo
Still inside the Recreation Room search for an Angel miniature and the next file is near it.
File 9 and File 10: Travi's Memo
Front and back. At the Safe Room Main House 1F, near the tape recorder.
File 11: Incinerator Room Memo
Once inside the Processing Area, go into the Incenerator Room where you get the key, and the file should be just above the washbasin.
File 12: Memo About Relief
Now that you have the Scorpion Key, open the Grandma's Room and examine the next file on the desk.
File 13: Doctor's Letter
Same place as the last one, to it's left inside the drawer.
File 14: Zoe's Investigation Notes
At the Yard, go inside the trailer to find the next file.
File 15: Marguerite's Warning
Near the Crow Door right next to the door, you will find the next file.
File 16: Serum Documentation
Once you can get inside the Altar Room, open the green box.
File 17: Marguerite's Notebook
Just outside the Altar Room near the piano.
File 18: Memo on the Deputy's Head
Just right after the Lucas call, inspect the fridge to find the head of the officer and the note behind it.
File 19: Luca's Journal
In the Kid's Room unlocked by the Snake Key, on the top of a desk.
File 20: Torn Page From Journal
Still inside the Kid's Room near the desk with an unbrella.
File 21: Clock Memo
Once in the Master Bedroom, search the globe near the clock.
File 22: Memo on Burnt Corpse
After the Barn fight, you will come across this fellow sitting on a chair.
File 23: Jim's Letter
Once you get control of Mia, search the 1st floor for this note on a bed.
File 24: Giovanni's Will
Still on the 1st floor of the Ship.
File 25: Mechanic's Memo
Once you get the Wrench to acess the broken elevator, you will find the next note.
File 26: Orders
At the place where Alan was, 2nd floor.
File 27: Tattered Secret Document
3rd floor where Alan was killed.
File 28: Email Log
Back into Ethan control, enter the Lab Room and search the email at the laptop.
File 29: Infection Report
In the room adjacent to the 1st Lab Room.
File 30: E-Necrotoxin Document
In the same room as before, you will find a large box containing the next file.
File 31: R&D Report 1
Behind the box is the location of this next file.
File 32: R&D Report 2
Continue turning right and you will find the last file that you need for the achievement!
Written by Condestavel.