Ok... so here is the situation, I have one Master Spreadsheet that I want to update, and then I have various other spreadsheets that have their own individual purpose and are useful in their own right, but I don't want to have to update each one individually of course.

For all intents here, lets say that this master spreadsheet is just named 'Master'

and the other workbook is called 'Slave'

Help Issue #1:
In the Master workbook I have a Sheet (Named: 'Signals') that I want to display in the Slave workbook. I want it set up in such a way that when you open the Slave workbook it automatically pulls all the data from the Signals sheet and it looks the exact same.

Help Issue #2:
Now, lets say I have columns within the Signals Spreadsheet that I don't want to display in the Slave workbook, how could I make it automatically update the data when opening the slave workbook and not pull certain columns?

Just to be clear: main concern right now is issue #1 but looking down the road, I am going to want help with Issue #2.

Your help is much appreciated! Thanks!!