According to PC World, Microsoft says users will be able to continue any chats started in Office Online on Skype on the desktop or their smartphone after the file is closed.

With the addition of this new feature, Microsoft intends to make its services into cross-platform tools.

However, the new feature is not yet available in Excel or OneNote Online, the report said. Microsoft did not share any time frame for a similar Skype for Office Online rollout for other apps part of the suite.

"All you need to get started is your Microsoft account. To get the best experience possible on Skype for Office Online, have your Skype account linked to your Microsoft account. If you haven't linked the two accounts yet," said company on its blog.

Earlier in May, Microsoft Corp showed off a test version of a real-time, spoken-word translation service for Skype calls, the first time the world's largest software company has demonstrated the breakthrough technology publicly in the United States.

Skype Translator, as it is currently called, allows speakers in different languages to hear the other's words spoken in their own language, according to a demo introduced by Chief Executive Officer Satya Nadella at the Code Conference technology gathering in Rancho Palos Verdes, California.

Microsoft has been working hard on speech recognition technology for years. Earlier this year it showed off Cortana, its voice-activated "personal assistant" designed to rival Apple's Siri.