So for the PC version once the game is Extracted open the folder known as "game" (MyOfficeAdventures-0.70-pc\MyOfficeAdventures-0.70-pc\game) then drop the code.code file into the folder.
Please note that if you do this while the game itself is open or running you may corrupt you save file.
This is what you game folder should look like if you want to run this cheats.
Once done just open the game like you normally would and use you in game mobile phone to access the cheats it will be on the right hand side.
I hope this helps the newbies with their modding.
Might be something similar for MAC and maybe even Android but I don't use either of those for these types of games.