Auto populate excel calendar

I'm working on a scheduling calendar for my boss and I'm running into a few problems:

specifics:
she wants a scheduling calendar listing all of her staff names. It may be helpful to display the time that they come to work. There are two teams; one group comes in from tuesday - saturday, the other wednesday - sunday.
she doesn't want to manually put in everyone's time every week.

how can i set it up so that it automatically populate the data and that it repeats every weeks, while giving her the option to manually make changes.

i am using an excel template like the one attached.