If you don’t know the archive’s safe code yet, this guide will help you reveal it. You will need this code to open the safe and get the items inside so you can continue doing the other quests.
Vampire the Masquerade Swansong: Archives Safe Code (How to Open the Archives Safe)
Go from the opposite side of the reception, turn left and enter the first office also located on the left side.

Once you’re inside collect the card from the desk which is standing behind the office door.

Exit the office and use the card to enter the Archives.

Go left where you will find the password.

Memorize the password which is located in the box on the left bottom.

Now go to the other side of the Archives and open the safe.

ALSO READ: Vampire the Masquerade Swansong: How to Access Jara Drory’s PC (Code Location)