Complex sentence: A technical preview of Office 2013 (Build 15.0.3612.1010) was released on 30 January 2012, and a Customer Preview version was made available to consumers on 16 July 2012.
Split into simpler sentences: A technical preview of Office 2013 (Build 15.0.3612.1010) was released on 30 January 2012. A Customer Preview version was made available to consumers on 16 July 2012.