Collaborate on Word documents with real-time co-authoring
support.microsoft.com › en-us › officeWhen someone shares a Word document with you, the email you receive includes a link that opens the document in your web browser: in Word for the web. Select Edit Document > Edit in Browser. If anyone else is working on the document, you'll see their presence and the changes they're making. We call this coauthoring, or real-time collaboration. From here, if you'd rather work in your Word app, switch from Editing to Open in Desktop App, near the top of the window. Want a guided tour?