One word that means "something that is standard/uniform and meant to be copied and modified as needed"

What is one word that means "something that is standard/uniform and meant to be copied and modified as needed" Like a spreadsheet that has all the basic info and only requires unique data.

Template.

E.g. from Dictionary.com:

anything that determines or serves as a pattern; a model

[...]

an electronic file with a predesigned, customized format and structure, as for a fax, letter, or expense report, ready to be filled in

In word processing/publishing, this is called a template.

https://en.wikipedia.org/wiki/Template_(word_processing).

A magazine, for example, runs a monthly column by a particular writer. The text will change every month, but the graphics, the layout, the author's biography, etc., will always be the same or very close to the same, because these elements are saved in a template.