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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 https://wiki.metropolia.fi/display/socialmedia/Google+Docs office suite which in turn is part of the larger package Google Drive https://wiki.metropolia.fi/display/socialmedia/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 http://en.wikipedia.org/wiki/Google_Apps_Script. Since 2014 new functionalities can be conjured using third party add-ons.
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Other Google Sheets type of services include Microsoft Excel Online https://wiki.metropolia.fi/display/socialmedia/Microsoft+Excel+ Online.
It is not advisable to upload personal ID data or sensitive information to Google services.
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