Can I make a template with sheets I already have?
I have been looking into saving my sheets as templates, and I think this would be a great option for our uses, but the problem is that all of my sheets for this year have been created. Each year I have 8+ large sheets with the same structure, and throughout the year we make some changes to formulas, add columns, etc. Right now, I have to go through each sheet individually and make these changes as they happen. My understanding of the template function is that if I made changes to the template, the sheets that are based on it would also reflect those changes.
So questions are I guess first off, is the above assumption correct? And if so, is there any way to make a template and assign the sheets that already exist to that template to streamline editing? Or do I have to wait until next year to implement this?