In an interview Monday, Microsoft senior vice president Chris Capossela said that, at least initially, the browser based versions of Excel, Word and PowerPoint won't have an offline mode.
"In the first generation we are certainly looking at having them be connected," he said. "For offline usage of course the Office suite is incredibly powerful." (See YouTube video below for his full comments on the matter. Apologies in advance for the bad sound quality.)
Capossela's comments came following the launch of Microsoft Online, the company's hosted versions of Exchange and Sharepoint.
Microsoft confirmed at last month's Professional Developer Conference in Los Angeles that it was bringing to market browser-based versions of its Office applications. The company has said that a technology preview version should be available still this year.