.. How do I get the timecards for Xenia?

After you use the lift the first time --

How do I use the lift?

-- Xenia will ask you to get her the timecards from the office. Um ... why? Eh, whatever.

Call Melina for permission, and she says no. So this is one chore you can't do. And since Xenia never asks about them again, I guess she didn't really care that much.