Are there any shops open in Melbourne on Christmas day?

I am a Christmas fanatic and love researching all things to do with the subject. I found the following posts that may be helpful.

Christmas Lights - Best Streets in Melbourne
www.homely.com.au/melbourne-cbd-melbourne-melbourne-greater-victoria/questions/christmas-lights--best-streets-in-melbourne

Where can you buy real Christmas Trees in Melbourne?
www.homely.com.au/melbourne-greater-victoria/questions/where-can-you-buy-real-christmas-trees-in-melbourne

What are the best Christmas recipes?
www.homely.com.au/melbourne-greater-victoria/questions/what-are-the-best-christmas-recipes

Are there any other Christmas window displays in Melbourne other than Myer and David Jones?
www.homely.com.au/melbourne-greater-victoria/questions/are-there-any-other-christmas-window-displays-in-melbourne-o

When is the Melbourne Christmas Parade?
www.homely.com.au/melbourne-greater-victoria/questions/when-is-the-melbourne-christmas-parade

Does Melbourne have miniature railways?
www.homely.com.au/melbourne-greater-victoria/questions/does-melbourne-have-miniature-railways

Where will Santa be this year in Melbourne?
www.homely.com.au/melbourne-greater-victoria/questions/where-will-santa-be-this-year-in-melbourne

Where is the place restaurant to have Christmas lunch in Melbourne's CBD or inner suburbs?
www.homely.com.au/melbourne-greater-victoria/questions/where-is-the-place-restaurant-to-have-christmas-lunch-in-mel

Where is the best roast dinner in Melbourne?
www.homely.com.au/melbourne-greater-victoria/questions/where-is-the-best-roast-dinner-in-melbourne

Events happening in this city this Christmas
www.homely.com.au/melbourne-greater-victoria/questions/events-happening-in-this-city-this-christmas

What are some quirky and unusual Christmas gift ideas in Melbourne?
www.homely.com.au/melbourne-greater-victoria/questions/what-are-some-quirky-and-unusual-christmas-gift-ideas-in-mel