Adding new Geographical Boundries to Excel Map

[sushias]

Hi,

I would like to add an LGA map on top to create new geographical boundries and names. Eg. an Local Government Area can be a combination of more than one or multiple postcode. I have downloaded the shape files from government websites but I am unable to create custom region maps as per the new boundries

Can someone assist me and advise how do I create new custom maps. I can import the file but it does not create or show any new boundries.

Thanks

Sushant