What are the data storage and manipullating

Nathan wants to create multiple worksheet containing common formatting styles for his team members. which file extension him to save these worksheets? nathan to create multiple worksheets with common styles. he needs to save them with the extension.

Computer programming is one type of what career

Asap 50 points ( paragraph pls) discuss the role of the concept behind the "internet of things (iot)" in today's digitally connected society.