Going To The Office
Arriving At The Office, Coming To Work
noun, する verb
If you exit somewhere in order to go to your company, that's going to the office, arriving at the office, and coming to work.
しゅっしゃ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Just watch out for the しゅつ, which gets changed to しゅっ, as many つs do in this situation.
今日は、八時に出社しました。
Today I arrived at the office at 8 o'clock.
出社前って、どんな風にすごしてますか？
How do you spend your time before going to work?
もう出社しているはずなのに。
They should be at work by now, though.