I agree with the other posts that suggest treating her like a normal person. Treating someone as a person first can make a good impression on anyone. These days, there are many people who prefer to live in the fantasy world for whatever reasons. Treating someone like a human will show that you have substance and look for substance which is why it will be a good first impression and lead to a healthy relationship.

She's a woman so just approach her like you would any other woman. You wouldn't walk up to another woman in your office and say "Hey nice rack". Just ask her to coffee or something. If she says no let it go and discreetly admire from afar

she's married and it's the workplace.  use common sense.  let it nourish your fantasy life.  do sessions if the itch still lingers.