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Microsoft announces Office software suite for iPad

28 March 2014 Last updated at 16:17 GMT

Microsoft has started offering an iPad edition of its Office software suite.

It was announced at the first launch event hosted by Satya Nadella since he became chief executive of the firm.

Three separate productivity apps are available - Word, Excel and Powerpoint - each of which has been optimised for touch-based controls.

Richard Taylor reports from San Francisco.