GDoc Key method (Use this method, seems most promising and versatile and well-documented):
[gdoc key=”https://docs.google.com/spreadsheets/d/1OZZ0-RhxaxfZeiY_CUqPxxy1QEg9NZ7JRGHBwMKT2cA/edit?usp=sharing” use_cache=”no”]IFrame (bad):
Inline Plugin:
https://docs.google.com/spreadsheets/d/1OZZ0-RhxaxfZeiY_CUqPxxy1QEg9NZ7JRGHBwMKT2cA/edit?usp=sharing