Several updates to Office 365, including collaboration in Excel

Office 365 provides the broadest and deepest toolkit for collaboration between individuals, teams and entire organizations. Updates this month make the experience even better with co-authoring in Excel, the general availability of Microsoft Teams and more. We’ll also be announcing the latest roadmap for SharePoint and OneDrive at the SharePoint Virtual Summit on May 16th. Read on for the details.

Source: New to Office 365 in March—co-authoring in Excel and more – Office Blogs

Wow, I didn’t know they were adding collaboration to Excel, or for that matter, that it already works in Microsoft Word!