This is the office you work in five out of the seven days of the week.
You mostly take handwritten letters from the years and enter them into the computer so that there is a digital copy. You don't know why this is important, and you've never bothered to ask.
You've been at this job for two years now, never advancing; just doing menial work that keeps you busy for eight hours in the day. It's perfect for you.
You overhear some co-workers talking from a few cubicles down. What do you do?

Continue doing your work.

Talk to your co-workers.