training excel vba - Mark up sheets in excel with duplicate data

You can save a template.

FILE > SAVE AS

Give the file a name, as you would a normal file,
Select the file type TEMPLATE (*.xlt)
Click OK


This saves the file as a template in a TEMPLATE directory, which is available from FILE > NEW, Templates on my computer. This templatye can be edited and then resaved if you have any fundamental changes.