...
Google Sheets (formerly known as Google Spreadsheets) is a browser based, collaborative spread sheet program that runs as a cloud service. It is part of Google Docs office suite which in turn is part of the larger package Google Drive .
Google Sheets developed with long strides in 2013-2015. For example table size restrictions have been removed. Nowadays also functionalities can be placed in tables by using Google's cloud based App Script. Since 2014 new functionalities can be conjured using third party add-ons.
...