open safe on forklift, take socket wrench, and unscrew that metal box near the cabinet
SPOILER: (click box to reveal/hide)

go to the metal cabinet, and click to the left of the screen
SPOILER: (click box to reveal/hide)

you should see one of those green lines, if you don't your too close to the cabinet
SPOILER: (click box to reveal/hide)

chek out the back of the stapled document, then look at the safe
HINT: (click box to highlight/fade)

same safe and color order for code, just imagine the boxes on their side to get the correct code.

I've got three documents and a pack of staples. Where's the stapler?

I didn't staple my papers together. I had a pack of staples, but couldn't find a stapler, and it let me put the papers into the machine anyway. I got a snowy end that says "Merry Christmas", and I'm curious if there is a stapler, and whether it affects the ending.

behind the green clocking-out mechanism on the table.

open the metal box with the third page inside? I have the ratchet from the first safe, but it seems to be the wrong tool.

You first need the socket for the ratchet from under the aerosol can lid on the shelves.

Turn Right, facing shelves, click on spray paint cans. click on lid on get socket. click on boxes in the corner. note colors.
Blue White White
Red Yellow White
White White Green
Click back and then Right.
Click on corner. Click on cabinet (twice). Get Staples.
Click on corner again, click on middle cart. not colors with arrow pointing Right.
Red Green Blue Yellow. Think of boxes.
Click back. Go back to the boxes and not that
Red is 4, Green is 9 Blue is 1, Yellow is 5.
Click on left side of fork lift and enter code. 4915. Get Wrench. Click on socket and combined with wrench. Note "the 1st" on back or safe.
Go back, click on corner once and then click shelf left of cabinet. Use wrench on first block and get paper. (3/3)
Click back then click Right. Click on time clock. Click ion paper. (1/3). click on the left of time clock to get Stapler. Combine Stapler with staples. Go back twice. and then click on sign above time clock. Note message about having papers stapled together. Click back, then click on carts, then click under middle cart to get paper. (2/3). click on stapler, then on papers. click on paper to turn over. note message. Think of the boxes for second code to safe. Flip the boxes 90 degrees to the left. Note.
White White Green
White Yellow White
Blue Red White
Going by same code.
Red Green Blue Yellow
New combination is
Red is 8, Green is 3, Blue is 7, Yellow is 5.
Click back on safe on fork life and enter 8375 to get key. Click back, then left. Click on shelf to the left. use key to open tool box. get time card. Click back, then Right twice. Click on time clock. Insert Time card in top of time clock. Click back, then click right twice. Insert papers in box next to tool box. Click back, Click left. Click to the Right of the overhead door. Click on time card note Numbers 8236. Find slot for card. Click on card slot. Click back. Click on machine right of card slots. Click open button. Click on black of the open door.

Your out..

Sorry this is my first walkthrough...

1,8 2,56 3,15 2,56 3,15 15,4 3,15 15,6 15,4 1,5 5,7 14,7 6,5 4,15 4,8 2,12 2,3 1,4 1,10 5,5 2,3 11,4 3,29 5,7 1,4 1,5 8,4 1,4 4,9 4,8 10,3 1,5 13,8 5,5 1,8 4,13 4,8 5,7 1,5 2,8 1,4 1,10 4,5 1,11 1,4 5,5 4,5 5,7 7,5 5,7 14,7 5,5 4,5 3,15 4,8 5,5 1,5 1,4 4,13 4,8 2,5 2,5 15,4 1,5 4,9 5,5 4,15 4,8 1,5 4,8 4,9 6,5 6,2 14,7 5,5 4,15 4,8 2,8 2,14 6,2 2,3 13,5 8,4 6,2 1,10 5,5 3,9 1,10 6,2 7,15 1,8 3,15 10,3 6,2 1,10 5,5 1,4 10,3 6,5 1,8 3,14 2,8 4,12 5,7 2,3 15,6 2,3 6,5 1,8 15,6 4,8 2,5 4,5 4,8 4,13 4,8 5,5 4,15 1,4 6,5 5,8 6,2 11,4 4,8 6,2 14,7 5,5 4,15 4,8 15,6 7,12 1,4 1,5 7,9 11,4 4,8 11,4 15,6 4,8 1,5 4,9 1,4 1,5 4,8 13,5 2,5 1,4 1,10 1,10 1,8 3,14 2,8 3,19 6,2 1,4 2,5 6,5 16,4 1,5 1,36 1,8 4,9 5,5 7,5 1,5 4,12 14,7 6,2 1,5 13,5 3,37 1,5 7,2 6,2 1,10 1,4 2,5 15,6 4,8 1,10 4,8 14,7 1,8 6,5 2,19 4,8 3,11 13,5 3,15 4,8 5,8 6,5 6,2 13,5 5,5 2,19 4,8 11,4 13,5 3,11 4,8 1,4 4,9 4,8